Integrated tool with circuit tracker, socket tester and / or load continuity tester

Abstract

Systems and methods described herein relate to a circuit tracker transmitter including an integrated continuity test. Further, the systems and methods described herein involve communicating data through a conductor that is being tested using a circuit tracker, a load continuity tester, and / or an integrated circuit tracker with a load continuity tester. In addition, the systems and methods described herein relate to tracking integrated socket testers in hardware by circuitry and / or logic circuitry.

Description

[0001] This application claims the benefit of and priority to each of U.S. Provisional Patent Application Serial No. 63 / 344,922 filed on May 23, 2022, U.S. Provisional Patent Application Serial No. 63 / 351,153 filed on June 10, 2022, U.S. Provisional Patent Application Serial No. 63 / 356,312 filed on June 28, 2022, and U.S. Provisional Patent Application Serial No. 63 / 397,127 filed on August 11, 2022. And, the contents of all of the above patents are expressly incorporated herein by reference in their entirety for any and all non-limiting purposes. Technical Field

[0002] Various aspects of the present disclosure generally relate to circuit testers and circuit tracing and management thereof, and more specifically to integrating circuit continuity testing into circuit tracing hardware. In addition, various aspects of the present disclosure also relate to methods and systems for transmitting data through a conductor that is being tested using a circuit tracer, a load continuity tester, and / or an integrated circuit tracer with a load continuity tester, as described herein. In addition, various aspects of the present disclosure also relate to methods and systems for accessing integrated socket testers in circuit tracing hardware through circuits and / or logic. For an integrated socket tester, a screen display on a transmitter device may include a display with an HGN or similar indicator. Background Art

[0003] A continuity tester verifies the existence of an intact current flow path in the conductor being tested. In other words, a continuity tester can be used to identify faults (shorts) or breaks in conductors or wires. When used with a circuit tracer to locate a fault, the continuity tester is first used to confirm which conductors have a short circuit condition (an intact current flow path), and then the circuit tracer transmitter wires are connected to those conductors to transmit a signal through those lines, allowing the fault (e.g., electrical short) location to be located using the circuit tracer receiver. This requires two separate devices, the continuity tester and the circuit tracer. In its simplest form, a continuity tester can operate using only an LED and battery circuit, where the LED is switched by passing the battery voltage through the conductor in question to the LED. But if the conductor is not broken, the battery voltage circulates through it and reaches the LED to complete the circuit and illuminate the LED. If the conductor is open internally, the battery voltage cannot complete the circuit and the LED remains off, indicating an open circuit. However, continuity testers have several disadvantages and are sometimes inconvenient to operate.

[0004] In addition, outlet testers are used to verify that the correct AC polarity (HNG - Hot-Neutral-Ground) is present in wired electrical outlets. It is usually a simple stand-alone tester that detects some common incorrect wiring conditions; the tester itself is a small device that contains a power plug and several indicator lights. Summary of the invention

[0005] A brief summary of the various aspects described herein is given below. This summary is not an extensive overview and is not intended to indicate key or critical elements or to define the scope of the claims. The following summary merely presents some concepts in a simplified form as an introductory prelude to the more detailed description provided below. Corresponding devices, systems, and computer-readable media are also within the scope of the present disclosure.

[0006] Typically, before using a circuit tracer device (e.g., a circuit tracer transmitter and a tracer receiver) to detect certain faults in a circuit, continuity is tested with a separate meter. A circuit tracer transmitter that integrates a continuity tester within the circuit tracer transmitter is beneficial. Integrating the continuity test into the circuit tracer transmitter requires only one device and allows the electrician to immediately transition from continuity testing to transmitting a signal through the affected conductor without removing the transmitter leads. If the line under test is shorted, the current within the primary side (e.g., input side) and secondary side (e.g., output side) of the transformer that injects the tracing signal into the line under test will increase. For example, the AC line and neutral can be tested by injecting a tracing signal into the AC line and neutral, and if the AC line and neutral are shorted, the current within the primary side and secondary side of the transformer in the circuit tracer transmitter will increase. This current increase can be used to detect a short circuit condition on the AC line using the current monitored on the primary side of the transformer (which is isolated from high voltage (e.g., high voltage AC)). In other words, during a short circuit in the line under test, the current drawn from the transformer driver IC will be higher.

[0007] In addition, a current sensing circuit can be used to detect the current consumption of the driver IC or the current consumption of other parts of the transmitter circuit to detect a short circuit on the line under test. For example, if the increase in current is greater than a predetermined threshold based on the output load, it can be determined that there is continuity between the two lines of the test leads connected to the secondary side of the transformer. In some embodiments, a continuity alarm and / or other notification can be triggered. In some embodiments, if the line under test is not powered, the continuity test can be run continuously. In some embodiments, the energized / non-energized state of the output line is detected within the circuit tracer transmitter device by a voltage sensing circuit. For example, it can be determined whether the line under test is powered or not powered by a voltage sensing circuit on the high voltage (secondary) side of the transformer. When not powered, a continuity test can be performed and an indication of whether there is continuity can be generated by visual, audio or other indications. When powered, the continuity test may not be run.

[0008] These features, and many others, are discussed in greater detail below. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present disclosure is described by way of example and not limitation in the accompanying drawings, in which like references indicate similar elements, and in which:

[0010] Figure 1A Depicted is an illustrative circuit tracer transmitter component diagram that may be used in accordance with one or more illustrative aspects described herein.

[0011] Figure 1B An illustrative circuit tracker transmitter component diagram with a wireless display that can be used in accordance with one or more illustrative aspects described herein is depicted. (and Figure 1A and Figure 1B Sometimes collectively referred to as “Figure 1”).

[0012] Figure 2 An illustrative computing system architecture is depicted that may be used in accordance with one or more illustrative aspects described herein.

[0013] Figure 3A A circuit block diagram is depicted that illustrates circuit components and signals that may be used in accordance with one or more illustrative aspects described herein.

[0014] Figure 3B A detailed circuit block diagram is depicted showing one example of a circuit used in some embodiments for integrating continuity testing in a circuit tracer transmitter device.

[0015] Figure 3C A detailed circuit block diagram is depicted showing one example of a current sensing circuit in a current tracer transmitter device used in some embodiments. (and Figure 3A , Figure 3B and Figure 3C Sometimes collectively referred to as "Figure 3").

[0016] Figure 4 A flow chart is depicted illustrating an example method for processing a request to digitally sign a transaction used in some embodiments.

[0017] Figure 5 A diagram depicting a sequence of data signals transmitted by a sensing unit used in some embodiments over a conductor under test.

[0018] Figure 6 Depicted are mapping tables stored in memory of multiple devices in a circuit tracer kit according to some embodiments described herein.

[0019] Fig. 7A , Figure 7B , Figure 7C , Fig.7D , Fig. 7E , Figure 7F and Figure 7G (collectively referred to as "FIG. 7") illustrates one or more devices in a circuit tracer kit that may be used in some embodiments described herein.

[0020] Fig. 8A , Figure 8B and Figure 8C (collectively referred to as "FIG. 8") illustrates the function and inner workings of an inductive device (e.g., clamp, fork, etc.) used in some embodiments.

[0021] Fig. 9A , Fig. 9B and Fig. 9C (collectively referred to as "FIG. 9") depicts a component diagram of an illustrative circuit tracer system that may be used in accordance with one or more embodiments described herein.

[0022] Fig.10 An illustrative accessory adapter and integrated socket tester are shown according to some embodiments described herein.

[0023] Fig.11A , Fig. 11B and Fig. 11C (collectively referred to as "FIG. 11") illustrates aspects of circuitry in a tracer transmitter device that integrates the ability to test electrical receptacle wiring according to some embodiments described herein.

[0024] Fig. 12A and Fig. 12B (collectively referred to as "FIG. 12") illustrates the visual indicators on an integrated circuit tracer transmitter with socket testing capabilities. DETAILED DESCRIPTION

[0025] In the following description of various embodiments, reference is made to the accompanying drawings, which form a part of this document, in which various embodiments of various aspects of the present disclosure that can be practiced are shown by way of illustration. It should be understood that other embodiments can be utilized and structural and functional modifications can be made without departing from the scope of the present disclosure. Various aspects of the present disclosure can have other embodiments and can be practiced or implemented in various ways. In addition, it should be understood that the terms and terminology used herein are for descriptive purposes and should not be considered as limiting. On the contrary, the terms and terminology used herein should have the broadest interpretation and meaning.

[0026] Locating a wire fault (i.e., a dead short, a mis-twisted neutral) in a circuit typically requires a two-step process. The first step requires performing a continuity check on a group of conductors using some type of electrical test equipment to confirm which conductors are affected. Then, the second step requires connecting a signal transmitter to the affected conductors to send a signal along the conductor to the electrical fault so that the signal receiver can identify the location of the fault. This two-step process requires two separate devices and multiple connections across the conductors to determine the affected conductor and properly connect the signal transmitter to the affected conductor. Current signal transmitter configurations require that the transmitter be held or positioned somewhere near the conductor while attempting to connect the wire to the affected conductor, making it a complex or two-person task. Additionally, traditional methods for testing continuity typically use a method that physically isolates the continuity test circuit from hazardous voltages, which requires greater creepage and clearance requirements and requires additional isolation to protect end users from shock or arc flash hazards. Typically, the circuit must be de-energized to perform an accurate continuity test because continuity cannot be reliably measured when energized, and the circuit may be damaged if high voltage is connected to the continuity test circuit. A typical continuity tester circuit may be connected directly to a potentially high voltage line. To protect the test circuit from hazardous voltages, a physical switch may be used to keep the circuit open when high voltage is present. In addition, high voltage protection may have to be added to the continuity circuit to prevent accidental exposure to high voltage. This protection may include additional circuitry as well as physical isolation to keep parts and connections further apart (creepage and clearance) to prevent arcing. This high voltage protection may also have the additional purpose of providing proper isolation for the end user. For example, a traditional continuity tester tests continuity on the live side of the tester circuit.

[0027] In order to meet the specified CAT level (IEC electrical environment category level), the continuity tester must be designed and tested for the surge potential defined for each category. These requirements include the spacing between the tester components on the live side and the housing (creepage distance as described above) and the spacing between certain electrical internal components (clearance distance as described above). The higher the CAT level, the larger the spacing and the larger the tester housing needs to be. In one example, the CAT I category may include copiers or other electronic equipment that are low-energy devices with transient limiting protection. Category I may include signal levels for remote communications, which include electronic and other low-energy devices with transient limiting protection. The peak pulse transient range may be 600-4000 volts with a 30 ohm resistive source. In another example, the CAT II category may include appliances, PCs, and TVs with sockets and long branch circuit devices. All sockets are more than 10 meters (30 feet) away from Class III power supplies and more than 20 meters (60 feet) away from Class IV power supplies. The peak pulse transient range may be 600-6000 volts with a 12 ohm resistive source. In another example, the CAT III category may include MC panels and feeder and short branch circuits, distribution board equipment, and heavy appliance receptacles with a "short" connection to the service entrance. The circuits are isolated from the CAT IV source by at least one layer of transformer insulation. The peak pulse transient range may be 600-8000 volts with a 2 ohm resistive source. In a final example, the CAT IV category may include external transformers and meters, including outdoor and service entrances, overhead service lines from utility poles to buildings, overhead lines to individual buildings, and underground lines to well pumps. The peak pulse transient range is 600-12000 volts with less than 1 ohm resistive source.

[0028] The proposed circuits, systems and methods eliminate the need for larger separation requirements; and since continuity is tested using the circuit on the isolated side, creepage and clearance requirements are less extensive and allow for the use of a smaller tester (smaller tester housing).

[0029] A typical circuit tracer transmitter has two leads that are connected to the associated conductors once continuity testing is completed using another tester. The circuits, systems, and methods described herein allow the same transmitter leads to be integrated into a voltage detection system within the transmitter, sense a continuity condition, and then allow the user to proceed directly to identifying an electrical short fault condition without having to remove the leads or toggle a switch. This saves the user time and the cost of a separate continuity testing device. By locating the continuity condition detection circuit on the isolated (e.g., main drive) side of the transformer, the design provides an improved level of shock hazard protection from surges. This may also allow the manufacturer to produce the unit in a smaller form factor, thereby minimizing cost and improving ergonomics (gripability, hand fatigue). By performing continuity testing on the low voltage side of the transformer, low voltage components can be used with less creepage and clearance. Otherwise, the circuit would require greater spacing (creepage and clearance) as well as the addition of high voltage protection components.

[0030] The systems and methods described herein can improve the functionality of test equipment, such as handheld circuit tracer devices, by adding circuitry and logic to allow continuity testing. A typical circuit tracer transmitter has two leads that are connected to the affected conductor once a continuity test is completed using another tester. The new design allows those same transmitter leads to be integrated into the transmitter.

[0031] The systems and methods described herein can improve the functionality of a test device (e.g., a handheld circuit tracer device) by adding circuitry and logic to allow continuity testing to be performed automatically. In some embodiments, a user-operated switch may not be required. For example, while multimeters can be used for continuity testing, they require the user / operator to switch a dial on the multimeter device to a continuity tester mode. In some embodiments, the systems, circuits, and methods described herein allow for automatic detection of the continuity of a conductor without having to change the configuration and / or move the test leads so that a single / single handheld device operates as a tracer device, performing non-continuity testing functions to help find circuit faults.

[0032] The systems and methods described herein can improve the functionality of a test device (e.g., a handheld circuit tracer device) by adding circuitry and logic to integrate a continuity test, enabling it to run simultaneously with the tracer device. In some examples, the simultaneous operation of the tracer device and the integrated continuity tester device can be seamless and triggered / controlled by a voltage detection circuit. When a voltage detection unit in a tracer continuity test transmitter device determines that the voltage detection circuit exceeds a predetermined standard, a trigger can be executed to disable the continuity tester device function. In some embodiments, the continuity tester function will automatically run as long as there is no trigger to disable the continuity tester device function.

[0033] The systems and methods described herein can improve the functionality of a test device (e.g., a handheld circuit tracer device) by adding circuitry and logic to allow a continuity test that only works when the circuit being tested is powered off. In some embodiments, the circuit being tested is monitored for a threshold voltage, and the continuity test is disabled if the conductor being tested is powered on.

[0034] The systems and methods described herein can improve the functionality of a test device (e.g., a handheld circuit tracer device) by adding circuitry and logic to allow continuity testing to be performed by utilizing a transformer present in a circuit transmitter device for circuit tracing. In some embodiments, the continuity test circuit utilizes a transformer, wherein the current sensing component of the continuity test circuit is located on the primary side of the transformer (e.g., the side isolated from potential AC voltage) rather than the secondary side (potentially high voltage).

[0035] The systems and methods described herein can improve the functionality of a test device (e.g., a handheld circuit tracer device) by allowing a tracing signal to be driven into an inductive clamp that is adjustably secured (e.g., clamped) around a conductor being tested, rather than being directly electrically connected. In some embodiments, a transmitter device of a circuit tracing device can be configured so that it can drive a tracing signal into the inductive clamp. The same inductive clamp can also be used as a current transformer to measure the current flowing in a conductor (e.g., the conductor being tested). The inductive clamp can be connected to a transmitter in the same manner to perform either operation, driving a tracing signal or measuring the current flowing. The inductive clamp functionality can allow a signal to be induced on a conductor when the transmitter leads cannot be connected to the conductor. The current transformer functionality can detect, concentrate, and measure the magnetic field generated when current flows through a conductor. This in turn can be converted to an ampere value and, in some embodiments, displayed on the transmitter screen via a wireless signal (e.g., Bluetooth) or by connecting the clamp to the leads of the transmitter device of the circuit tracing device. In some embodiments, the fixture can also sense signals on the conductor independently of the transmitter and receiver, and can detect, concentrate and measure the magnetic field generated when current flows through the conductor, and then convert this value into amperes. The ampere value can be displayed on the screen of the display on the fixture, on the display of the transmitter device, on the display of the corresponding receiver device, or on a mobile device that is wirelessly synchronized with the fixture.

[0036] Circuit components block diagram. Go to Figure 1A, an illustrative circuit tracker transmitter block diagram 100 that can be used according to one or more illustrative aspects described herein is shown. The blocks may include one or more of a power supply block, a microcontroller block, a current sensing block, an output driver block, a line coupling transformer block, and a voltage sensing block. A button block, a visual output block, and a buzzer block connected to the microcontroller block are shown. The visual output block may include an LED block and / or a display block. The display used as part of the display block may use one or more of enhanced black twisted nematic ("EBTN") liquid crystal technology, liquid crystal display ("LCD") technology, thin film transistor ("TFT") LCD technology, quantum dot ("QLED") technology, light emitting diode ("LED") technology, organic light emitting diode ("OLED") technology, and the like.

[0037] The power block can be connected to the microcontroller block and the output driver block. In some embodiments, and as shown, the power block can be connected to the output driver block via a current sensing block. In some embodiments, the power block can include an internal power source (e.g., a battery). In some embodiments, the power block can be an external power source (e.g., an AC or DC power source).

[0038] A microcontroller block is shown. In some embodiments, a microcontroller may be a general purpose processor, a microprocessor, or any conventional processor, controller, microcontroller, or state machine. A processor and / or microcontroller may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration. In some embodiments, a particular process and method may be performed by a circuit for a given function. In some embodiments, a microcontroller may represent a Figure 2 The computing device shown and described. The microcontroller block is depicted as being electrically connected to the button block, the visual output block, and the buzzer block.

[0039] In some embodiments, the microcontroller block is configured to receive input to enter the continuity test mode. For example, press a button, long press a button, switch signal, etc. In some embodiments, the microcontroller block can be configured to always perform a continuity test when powered on, as long as the condition does not contradict the continuity test. For example, if one or more conductive lines being tested are powered on, the continuity test may be contradictory. In some embodiments, the microcontroller block is configured to determine whether the two test leads are electrically open or shorted. In some embodiments, the current consumption on the primary side of the transformer load can be detected to determine whether the two test leads are electrically open or shorted. For example, the current consumed by the output driver block of the primary side of the drive line coupling transformer block can be measured. The microcontroller block can be configured to receive a signal indicating the current consumed by the output driver block. In some embodiments, an analog signal indicating the current consumed by the output driver block can be received. In some embodiments, a digital signal indicating the current consumed by the output driver block can be received. For example, before being received, the analog signal may have been processed by an analog-to-digital converter. The microcontroller block can be configured to compare the current consumed by the output driver block to a threshold level of current, wherein reaching or exceeding the threshold level of current indicates a short circuit and / or continuity between the test leads. In another example, a digital signal indicative of the current output by the output driver block to the primary winding of the line coupling transformer block can be used instead. In general, the microcontroller can be configured to receive a current measured anywhere in the circuit on the low voltage primary driver side of the line coupling transformer block, where the current increases when the two test leads are shorted. The threshold requirement for the current increase can vary depending on where the current is measured.

[0040] The microcontroller block can be configured to generate a continuity indication when continuity is detected. In some embodiments, the continuity indication can be a visual alarm including a light-emitting component. For example, one or more visual output blocks and / or buzzer blocks can be used. In some embodiments, the continuity indication can be an audio alarm including an audible sound generated by a buzzer block. For example, the audio alarm can be emitted by various sound-emitting devices, which can include speakers, piezoelectric speakers, piezoelectric buzzers, other buzzers, etc. In some embodiments, one or more sound-emitting devices generate an audio alarm to indicate whether the two conductive lines being tested are electrically connected or short-circuited.

[0041] If continuity is no longer detected, the microcontroller block may be configured to stop any running continuity indication. In some embodiments, the continuity indication may be a visual alarm including a light emitting component. For example, if currently illuminated, one or more LEDs of the LED block may go out to indicate that the two conductive circuits being tested are electrically open. In another example, the display of the display block may display an indication or stop displaying an indication indicating that the two conductive circuits being tested are electrically open. In some embodiments, the continuity indication may be an audio alarm including an audible sound. For example, the audio alarm may be emitted by various sound emitting devices, which may include speakers, piezoelectric speakers, piezoelectric buzzers, other buzzers, etc. In some embodiments, if there is currently an audio alarm to indicate that the two conductive circuits being tested are electrically open, the microcontroller block is configured to stop using the buzzer block to generate an audio alarm.

[0042] The microcontroller block can be configured to receive an input to stop the continuity test mode. In some embodiments, the microcontroller block can be configured to determine whether a certain condition exists to end the continuity test mode due to a button press, a long button press, a toggle signal, etc. In some embodiments, if the condition is inconsistent with the continuity test, the microcontroller block can be configured to end the continuity test. For example, if one or more conductive lines being tested are live, the continuity test may be inconsistent.

[0043] In some embodiments, the button block includes one or more input devices (e.g., one or more buttons) for providing input to the microcontroller block. In some embodiments, the button can be used to place the microcontroller block in a continuity test mode. For example, long pressing the button can provide input to the microcontroller block, where the microcontroller block is configured to place the circuit tracer transmitter in a continuity test mode. Long pressing the button again can return the circuit tracer transmitter to the circuit trace mode.

[0044] In some embodiments, the visual output block may include one or more LED blocks and / or display blocks. In some embodiments, the LED block includes one or more LEDs to provide one or more visual outputs from the microcontroller block. In some embodiments, one or more LEDs of the LED block may be configured with the microcontroller block to indicate the "on" state of the circuit tracer transmitter device. For example, when the circuit tracer transmitter device is turned on, an LED near or illuminated by the power-on shape symbol may light up. In some embodiments, one or more LEDs of the LED block may be configured with the microcontroller block to indicate that one or more conductive lines being tested are powered on. For example, when one or more conductive lines being tested are powered on, an LED near or illuminated by the lightning shape symbol may light up. In some embodiments, one or more LEDs of the LED block may be configured with the microcontroller block to indicate that the circuit tracer transmitter device is in continuity test mode. For example, when two conductive lines being tested are determined to have continuity (i.e., short circuit), an LED near or illuminated by the symbol representing the continuity test mode may light up. In some embodiments, the display of the display block can be configured with the microcontroller block to indicate an "on" state of the circuit tracer transmitter device. In some embodiments, the display of the display block can be configured with the microcontroller block to indicate that one or more conductive lines being tested are energized. In some embodiments, the display of the display block can be configured with the microcontroller block to indicate that the circuit tracer transmitter device is in continuity test mode. More generally, the display of the display block can be configured to display images, icons, characters and / or other visual outputs from the microcontroller block reflecting various states and functions of the device. The display used can be one or more of EBTN, LCD, TFT LCD, QLED, LED, OLED technology and / or any other similar visual display technology.

[0045] In some embodiments, one or more sound generating devices are included to provide one or more audio outputs from the microcontroller block. The sound generating devices may include speakers, piezoelectric speakers, piezoelectric buzzers, other buzzers, etc. In some embodiments, one or more sound generating devices of a buzzer block may be configured with the microcontroller block to indicate a condition in which the circuit tracer transmitter device detects continuity on two lines being tested. For example, the buzzer may sound when the circuit tracer transmitter device detects continuity on two lines being tested. The microcontroller block may utilize one or more sound generating devices (e.g., a buzzer block) for other indications, such as power on, power off, switching modes, fault detection, low battery conditions, etc.

[0046] A current sensing block is shown. In some embodiments, the current sensing block is configured to measure the current drawn by the output driver block from the power supply block. The current sensing block can be configured to send a signal to the microcontroller block indicating that the output driver block is drawing current from the power supply block. Although the current sensing block is shown as being located between the power supply block and the output driver block, the current sensing block can be located elsewhere in the circuit on the primary driver side of the line coupling transformer block. For example, the current sensing block can be located between the output driver block and the line coupling transformer block to measure the current output by the output driver block. Other embodiments may include other locations for the current sensing block such that when the test leads on the secondary driver side of the line coupling transformer block are connected to a shorted conductive line, the current sensing block can be configured to detect an increase in current draw. As Figure 3A As shown, the current sensing block may include an analog-to-digital converter to send a digital signal to the microcontroller indicating that the output driver block is drawing current. In some embodiments, the analog output of the current sensing block is connected to the input of the analog-to-digital converter. The digital output of the analog-to-digital converter can then be sent to the microcontroller block. In some embodiments, the analog-to-digital converter can be integrated into one of the current sensing block and / or the microcontroller block.

[0047] An output driver block is shown. In some embodiments, the output driver block drives the signal from the microcontroller block to the primary driver side of the line coupling transformer block. As a non-limiting example, a 32KHz square wave signal can be input from the microcontroller block to drive it to the primary driver side of the line coupling transformer block. In some embodiments, the output driver block includes a 1 / 2 bridge rectifier.

[0048] A line coupling transformer block is shown. In some embodiments, the line coupling transformer block is configured to step up the voltage of an input signal from an output driver block to a secondary winding on a secondary driver side of the circuit using a primary winding on the primary driver side of the circuit. The number of turns or coils on each respective side determines the amount of voltage boost. For example, the turns ratio of a transformer is sometimes referred to as the number of turns on its secondary coil divided by the number of turns on its primary coil. In this document, the primary driver side of a circuit may in some cases be referred to as the low voltage side, while the secondary driver side of the circuit may be referred to as the high voltage side. In some embodiments, the line coupling transformer block substantially isolates the low voltage side of the circuit from the high voltage side, which may be connected to a high voltage (e.g., up to 600 volts).

[0049] A voltage sensing block is shown. In some embodiments, the voltage sensing block is located on the high voltage side of the line coupling transformer block and is configured to detect any voltage present from the conductors of the test leads connected to the circuit tracer transmitter device. In some embodiments, a voltage indication is sent back to the microcontroller block and the microcontroller block can suppress the continuity test when a voltage is detected. In some embodiments, the voltage sensing block is capable of making voltage measurements up to very high voltages. In one example, the voltage sensing block is capable of making voltage measurements up to 600 volts (RMS). In one example, if any voltage is detected, the microcontroller block can suppress the continuity test to help ensure the accuracy of the continuity test. In another example, if a voltage exceeding a certain threshold is detected, the microcontroller block can suppress the continuity test.

[0050] Now go to Figure 1B , an illustrative circuit tracker transmitter block diagram 130 is shown, which shows Figure 1B A variant of the invention, wherein the wireless module acts as an interface for visual output sent to a display. In some embodiments, the wireless module is configured to communicate wirelessly with an external display via a network (e.g., a wireless Wi-Fi network). The external display may be described as Figure 1A The external display may be a standalone display or integrated into another device (e.g., a receiver component of a circuit tracing device), a display integrated into a fixture of a circuit tracing device, a mobile device, a laptop, a desktop, a tablet device, etc.

[0051] The wireless module block can be configured to wirelessly communicate with the display block using one or more of the following communication standards: wireless LAN communication standards; cellular communication standards; short-range wireless communication standards; low-power wireless communication standards; and the like. Examples of wireless LAN standards may include, but are not limited to, the IEEE 802.11 series of wireless LAN standards commonly referred to as "Wi-Fi". Examples of cellular communication standards may include, but are not limited to, any of the 2G, 3G, or 4G generation cellular communication standards. Examples of short-range communication standards may include, but are not limited to, the IEEE 802.15 series of wireless communication standards, which include implementations commonly referred to as Bluetooth, ZigBee, and / or any near field communication (NFC) standards. Short-range wireless communication standards may allow a maximum wireless range of about 1 meter (m) to about 100 meters (e.g., about 3.3 feet (ft) to about 330 feet), depending on the transmission power. In some embodiments, the wireless module block communicates with another device including the display block, where the device performs unique pairing and / or handshake on a local WiFi network so that Ethernet packets can then be sent via wireless IEEE 802.11.

[0052] In one example, Figure 1B A user of the circuit tracer transmitter shown in can be seated at a test station in an industrial electronics assembly facility. The facility can be equipped with a Wi-Fi network to which the circuit tracer transmitter can be communicatively coupled via a wireless module, such as Figure 1B as shown. The test station can include a computer display equipped with Wi-Fi connectivity. In addition, the circuit tracer transmitter can omit a complex visual display and instead communicate via a wireless module in the circuit tracer transmitter to output visual information (e.g., images, icons, characters, and / or other visual indicators reflecting various states and functions) on the computer display at the test station. After the handshake / pairing process, wireless communication can occur over a network (e.g., a Wi-Fi LAN network) or can occur directly between the wireless module in the circuit tracer transmitter and the computer display. In some examples, the visual output from the circuit tracer transmitter to the computer display can be recorded and saved as a log to record the tests that occurred for a particular electronic component being tested in the facility.

[0053] Now go to Figure 2 , describes a computing device 200 that can be used as one or more microcontrollers or other processors in the systems described herein. The computing device 200 may include a processor 203 for controlling the overall operation of the computing device 200 and its related components (including RAM 205, ROM 207, input / output devices 209, communication interface 211, and / or memory 215). A data bus may interconnect the processor 203, RAM 205, ROM 207, memory 215, I / O devices 209, and / or communication interface 211. In some embodiments, the computing device 200 may represent, incorporate, and / or include a variety of devices, such as a desktop computer, a computer server, a mobile device (e.g., a laptop, a tablet computer, a smartphone, any other type of mobile computing device, etc.), and / or any other type of data processing device.

[0054] Input / output (I / O) devices 209 may include a microphone, keyboard, touch screen, and / or stylus through which a user of computing device 200 may provide input, and may also include one or more of a speaker for providing audio output and a video display device for providing text, audiovisual, and / or graphical output. Software may be stored in memory 215 to provide instructions to processor 203, thereby allowing computing device 200 to perform various operations. Memory 215 may store software used by computing device 200, such as operating software 217. The various hardware storage units in memory 215 may include volatile and non-volatile, removable and non-removable media implemented in any method or technology to store information (such as computer-readable instructions, data structures, program modules, or other data). Memory 215 may include one or more physical persistent memory devices and / or one or more non-persistent memory devices. The memory 215 may include, but is not limited to, random access memory (RAM) 205, read-only memory (ROM) 207, electronically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, optical disk storage, magnetic cassettes, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by the processor 203.

[0055] The communication interface 211 may include one or more transceivers, digital signal processors, and / or additional circuitry and software for communicating over any network (wired or wireless) using any of the protocols described herein.

[0056] The processor 203 may include a single central processing unit (CPU), which may be a single-core or multi-core processor, or may include multiple CPUs. The processor 203 and related components may allow the computing device 200 to execute a series of computer-readable instructions to perform some or all of the processes described herein. Figure 2 Not shown, various elements within memory 215 or other components within computing device 200 may include one or more caches.

[0057] Although the various components of computing device 200 are described separately, the functionality of the various components may be combined and / or performed by a single component and / or multiple communicating computing devices without departing from the invention.

[0058] Circuitry associated with an integrated load continuity tester. Figure 3A A circuit block diagram is depicted showing circuit components and signals that may be used in accordance with one or more illustrative aspects described herein. These components may include one or more of a driver IC component, a current sensing circuit component, and a microcontroller component. The microcontroller component may include an analog-to-digital converter component.

[0059] A driver IC assembly is shown. In some embodiments, the driver IC assembly receives input. The input can come from a processor and / or a microcontroller (e.g., a microcontroller block). A test waveform is shown. A non-limiting example signal of a test waveform can be a 32KHz square wave signal. In some embodiments, other signals can be used that can be detected by a receiver assembly of a circuit tracing device paired with a circuit tracing transmitter device. In some embodiments, the driver IC assembly includes a 1 / 2 bridge rectifier.

[0060] A current sensing circuit assembly is shown. In some embodiments, the current sensing circuit assembly is configured to measure the current drawn by the driver IC assembly. The current sensing circuit assembly can be configured to send a signal indicating that the driver IC assembly is drawing current. Although the current sensing circuit assembly is shown as detecting the current drawn by the driver IC assembly, the current sensing circuit assembly can be located Figure 3A . For example, the current sensing circuit assembly can be located between the output of the driver IC assembly and the line coupling transformer to measure the current output by the driver IC assembly. Other embodiments may include other locations of the current sensing circuit assembly so that when the test lead on the secondary driver side of the line coupling transformer is connected to the shorted conductive wire, it can be configured to detect an increase in current consumption. The current sensing circuit assembly may include an analog-to-digital converter (shown as part of a microcontroller in the figure) to send a digital signal to the microcontroller indicating that the output driver block is drawing current. In some embodiments, the analog output of the current sensing circuit assembly is connected to the input of the analog-to-digital converter. The digital output of the analog-to-digital converter can then be sent to the microcontroller. In some embodiments, the analog-to-digital converter can be integrated in the microcontroller (as shown in the figure).

[0061] The microcontroller components are shown. Figure 1A and / or Figure 1B As described, in some embodiments, a microcontroller may be a general purpose processor, a microprocessor, or any conventional processor, controller, microcontroller, or state machine. A processor and / or microcontroller may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration. In some embodiments, a particular process and method may be performed by circuits specific to a given function. In some embodiments, a microcontroller may represent a Figure 2 A computing device as shown and described.

[0062] Additionally, line and neutral conductors are depicted as an example test configuration where the test leads of a circuit tracer transmitter are connected to the line and neutral conductors of an AC power line.

[0063] Figure 3B A detailed circuit block diagram 300B is depicted showing one example of a circuit for integrating continuity testing in a circuit tracer transmitter device used in some embodiments. Figure 3B Figure 1 shows the implementation and Figure 3A A non-limiting example of one design of the functions described in. Although Figure 3B Several components and / or subcircuits are shown, but not all components and / or subcircuits are necessary or essential to the operation of all embodiments disclosed explicitly or implicitly herein. For example, the current sensing circuits, test lead circuits, and / or voltage detection circuits shown herein may be implemented in one of a number of different ways, which will only become apparent to those skilled in the art after reading the entire disclosure herein. At the same time, Figure 3B The transformer shown in (eg, a line-coupled transformer) can be implemented using any of several turns ratios of the transformer based on the desired voltage step of the input signal from the output driver block or sub-circuit.

[0064] Figure 3C A detailed circuit block diagram 300C is depicted showing an example of a current sensing circuit in a current tracker transmitter device used in some embodiments. For example, the current sensing circuit is implemented Figure 3B A non-limiting example of one design of the functionality of the current sensing block. Figure 3C Several components and / or subcircuits are shown, but not all components and / or subcircuits are necessary or essential to the operation of all embodiments disclosed explicitly or implicitly herein. For example, a current sensing portion of a circuit and an amplification portion of a circuit are depicted, but current sensing and / or amplification may be implemented in one of several different ways, which will only become apparent to a person skilled in the art after reading the entire disclosure herein.

[0065] Methods and / or algorithms related to the operation of an integrated load continuity tester. A continuity test mode may be provided in a load continuity tester integrated into a circuit tracer transmitter. Figure 4 Process 400 is depicted, which illustrates an example method or algorithm for load continuity tester functionality. The method or algorithm may be used in some embodiments described herein. The method may be implemented or executed, for example, by one or more computing devices (whether circuits, microcontrollers, or processors), as discussed in conjunction with FIGS. 1, 2, 3A, and 3B. The method may be implemented or executed, for example, by one or more computing devices (whether circuits, microcontrollers, or processors). Figure 1A and / or Figure 1B The method may be implemented or executed by, for example, one or more computing devices 200. The method may be implemented or executed by, for example, one or more computing devices 200. Figure 3A or Figure 3B In some embodiments, the operations in the flowchart may be performed in accordance with Figure 4 is executed in a different order than shown, and has the same Figure 4 In some embodiments, actions may be combined and / or divided into sub-actions.

[0066] Process 400 begins at step 410, where the computing device may enter a continuity test mode (410). In some embodiments, an input is received to place the computing device in continuity test mode. For example, a button is pressed, a button is long pressed, a signal is switched, etc. In some embodiments, the computing device may always perform a continuity test as long as the conditions do not contradict the continuity test. For example, if one or more conductive lines being tested are powered, the continuity test may be contradictory. Therefore, in step 413, the computing device may determine whether one or more test leads are powered. For example, a voltage sensing circuit may be used to determine the powered / unpowered state of the test leads. In some embodiments, the voltage sensing circuit may be installed on the high voltage (secondary) side of the transformer where the test leads are located. The determination of power may require that the voltage is above a threshold voltage level. If one or more test leads are powered (413: yes), the process may return to step 410 and wait for receiving input to enter continuity test mode. If one or more test leads are not powered (413: no), the process may continue to step 415.

[0067] In step 415, the computing device can determine whether the two test leads are electrically open or shorted. In some embodiments, it can be determined that the two test leads are electrically open or shorted by detecting the current consumption on the primary side of the transformer load. For example, the current drawn by the output driver IC driving the primary side of the transformer load can be measured. A signal indicating that the output driver IC is drawing current can be received. In some embodiments, an analog signal indicating that the output driver IC is drawing current can be received. In some embodiments, a digital signal indicating that the output driver IC is drawing current can be received. For example, the analog signal may have been processed by an analog-to-digital converter before being received. The current drawn by the output driver IC can be compared with a threshold level of current, wherein reaching or exceeding the threshold level of current indicates a short circuit and / or continuity between the test leads. In another example, a digital signal indicating that the current is being output by the output driver IC to the primary winding of the transformer can be used. Generally, the current can be measured at any position in the circuit on the low-voltage primary driver side of the transformer, where the current will increase when the two test leads are shorted. The threshold requirement for the increase in current may vary depending on the location of the measured current. If the two test leads are electrically shorted (415: SHORT), the process may proceed to step 420. If the two test leads are electrically open (415: OPEN), the process may proceed to step 430.

[0068] If the two test leads are electrically shorted (415: short circuit), the process can continue to generate a continuity indication (420). In some embodiments, the continuity indication can be a visual alarm including a light-emitting component. For example, one or more LEDs can be lit to indicate that the two conductive lines being tested are electrically connected or shorted. In another example, the continuity indication can be a visual alarm including one or more displays (e.g., display blocks), which allows images, icons, and characters to be displayed flexibly on the display screen of the computing device. For example, a continuity icon or text can be displayed to indicate that the two conductive lines being tested are electrically connected or shorted. In some embodiments, the continuity indication can be an audio alarm including an audible sound. For example, an audio alarm can be emitted by various sound-emitting devices, which can include speakers, piezoelectric speakers, piezoelectric buzzers, other buzzers, etc. In some embodiments, one or more sound-emitting devices generate an audio alarm to indicate that the two conductive lines being tested are electrically connected or shorted.

[0069] If the two test leads are electrically open (415: OPEN), the process can continue to stop any active continuity indication (430). In some embodiments, the continuity indication can be a visual alarm including a light-emitting component. For example, if one or more LEDs are currently lit, they can be turned off to indicate that the two conductive lines being tested are electrically open. In another example, the continuity indication can be a visual alarm including one or more displays, which allows for flexible display of images, icons, and characters on the display screen of the computing device. For example, if a continuity icon or text is currently displayed, it is canceled to indicate that the two conductive lines being tested are electrically open. In some embodiments, the continuity indication can be an audio alarm including an audible sound. For example, the audio alarm can be emitted by various sound-emitting devices, which can include speakers, piezoelectric speakers, piezoelectric buzzers, other buzzers, etc. In some embodiments, if an audio alarm currently exists, one or more sound-emitting devices stop generating an audio alarm to indicate the situation where the two conductive lines being tested are electrically open.

[0070] In step 435, the computing device may determine whether a condition exists to end the continuity test mode. In some embodiments, "determining whether a condition exists to end the continuity test mode" may be determined by pressing a button, long pressing a button, switching a signal, etc. In some embodiments, the computing device may end the continuity test if the condition contradicts the continuity test. For example, if one or more conductive lines being tested become energized, the continuity test may be contradictory. If there is no condition to end (435: No), the process may return to step 415 to determine whether the two test leads are still electrically open or shorted. If there is a condition to end (435: Yes), the process may continue to step 440. In step 440, the computing device may resume normal tracker transmitter functionality. In some embodiments, resuming normal tracker transmitter functionality involves no longer being in continuity test mode.

[0071] One or more aspects discussed herein may be embodied in computer-usable or readable data and / or computer-executable instructions, such as one or more program modules, which are executed by one or more computers or other devices described herein. Typically, program modules include routines, programs, objects, components, data structures, etc., which perform specific tasks or implement specific abstract data types when executed by a processor in a computer or other device. Modules may be written in a source code programming language that is subsequently compiled for execution, or may be written in a scripting language (such as (but not limited to) Python, Perl, or any appropriate scripting language). Computer-executable instructions may be stored on a computer-readable medium, such as a hard disk, an optical disk, a removable storage medium, a solid-state memory, a RAM, etc. As will be appreciated by those skilled in the art, the functions of the program modules may be combined or distributed as needed in various embodiments. In addition, the functions may be embodied in whole or in part in firmware or hardware equivalents (such as integrated circuits, field programmable gate arrays (FPGAs), etc.). Specific data structures may be used to more efficiently implement one or more aspects discussed herein, and such data structures are considered to be within the scope of computer-executable instructions and computer-usable data described herein. Various aspects discussed herein may be embodied as methods, computing devices, systems, and / or computer program products.

[0072] Figure 5 A schematic diagram of a series of data signals transmitted by a sensing unit on a conductor under test, used in some embodiments, is depicted. In one embodiment, the sensing unit (as shown in FIG. 8 ) is located in the sensing clamp 702. In other examples, the sensing unit may be located in a fork meter or other device that uses induction to send pulses on the conductor under test. The sensing unit may induce a signal pulse having one or more characteristics in the conductor in order to transmit discernible data. In one embodiment, the characteristic of the signal may relate to the width (or duration) of the signal. In other embodiments, the characteristic of the signal may relate to content other than or in addition to the duration of the signal. A circuit tracer receiver coupled to the conductor in communication receives and processes the signal pulses to obtain the transmitted data. While a simplified example may involve simply sensing a repeated 10 millisecond duration pulse to indicate that the sensing unit detects / measures an energized circuit, or a repeated 20 millisecond duration pulse to indicate that the sensing unit detects / measures an unenergized circuit. The interval between each repeated pulse may be 125 milliseconds or some other predetermined / predefined value. Any predetermined / predefined value may be stored / encoded on the transmitter and receiver devices. However, merely transmitting a powered or unpowered status indicator to a receiver device does not automatically provide the ability to transmit more detailed and / or more specific data.

[0073] refer to Figure 5, which illustrates that the disclosed system is designed to transmit more complex data using pulse streams of varying widths. In a first embodiment, the transmitted data may include current ampere measurements / readings, but other embodiments may include more and / or other information. For example, voltage readings or other measurements may be sent as the transmitted data. Such complex measurements and information cannot be simply transmitted using status flags (e.g., power on or power off). Instead, Figure 5 The sequence of data signals 500 shown in is designed to transmit a 100 ampere measurement taken at the inductive clamp / fork from an inductive clamp / fork (i.e., an inductive unit) to a circuit tracer receiver. In some embodiments, the 100 ampere value can be transmitted using binary encoding, which converts to binary "1100100". In one example, a unique marker is used to indicate the start pulse and the end pulse. The unique marker can be a pulse duration of a first predetermined duration (e.g., 30 milliseconds). At the same time, a binary one can be indicated by a second predetermined duration (e.g., a 20 millisecond pulse) induced on the conductor being tested. And a third predetermined duration (e.g., a 10 millisecond pulse) can indicate a binary zero. In some examples, the pulses can occur at a predetermined frequency (e.g., 32kHz at intervals of 100-125 milliseconds; a circuit tracer transmitter can emit 8 pulses per millisecond). Although illustrative values ​​for pulse duration and frequency are provided above, the present disclosure is not limited thereto. Other values ​​can be used and the present disclosure contemplates these values.

[0074] In addition, the predetermined values ​​of duration, frequency, and other characteristics can be adjusted, changed, or otherwise improved by updating the software and / or firmware stored on the various devices 780 that communicate in the circuit tracer kit. In some embodiments, updates to the software and / or firmware can be performed on the device through an interface (e.g., USB port, Bluetooth wireless, etc.) to change the values ​​of the above-mentioned characteristics. For example, the value of the start pulse can be modified to 40 milliseconds, and the value of the end pulse can be modified to 50 milliseconds. In some embodiments, a third, fourth, etc. different pulse width / duration can be used to indicate a number from 0 to 9. In addition, in some embodiments, a third, fourth, fifth, sixth, etc. different pulse width / duration can be used for each pulse width to indicate an ASCII character or other mapping (based on a custom mapping table stored in memory).

[0075] Figure 6 A mapping table stored in the memory of multiple devices in a circuit tracer kit according to some embodiments described herein is shown. The mapping table shows that the correspondence between the data signal transmitted by the inductive clamp / fork (or other inductive unit / device that is inducing a signal on the test conductor) and the processing performed by the receiver device is predefined. Although Figure 6A 4-bit binary mapping table is shown, but the disclosure is not so limited. An 8-bit binary number (or any other number) may alternatively be used to provide a decimal number of 0-255 (or other range), thereby providing a wider range.

[0076] Although Figure 6 The mapping table in shows one example of a data communication protocol that can be used with various embodiments disclosed herein, but the table can also simply provide a current (ampere) measurement without additional processing overhead. For example, the inductive clamp can simply transmit a numerical value between 0-255 indicating the ampere reading measured at the inductive clamp and provide it to the receiver device. In such an example, the circuit tracer receiver can be pre-programmed to receive the data signal and decode it into a value that is the ampere reading and nothing else. Of course, the present disclosure contemplates that additional binary digits can be added to the stream if desired and predefined on the sending and receiving devices.

[0077] However, in some examples, a more robust communication protocol can be defined through a mapping table, such as Figure 6 In such an example, something like Figure 5 , set definitions can be provided for the start pulse and end pulse, such as binary "1111". Therefore, on the circuit tracer receiver, whenever the data signal sequence matches the definition of the start pulse or end pulse, the microcontroller on the receiver device processes the contents of the subsequent data signal. In addition, some binary values ​​can be mapped to indicate the type of value provided - for example, a decimal value of ten indicates that the subsequent value indicates an ampere measurement from the inductive clamp rather than a voltage measurement or other value. As Figure 6 As shown, other operations and functionality are contemplated and can be implemented using the disclosed systems and methods.

[0078] In one example, in order to be able to perform data communication without the need for a handshake protocol or as a one-way communication, the sensing unit can be coded to output a series of consecutive decimal output zeros to clear the storage buffer on the receiver device, and then send a sequence of two start pulse signals (e.g., binary value "1111", twice). Therefore, the receiver device can be equipped with a storage buffer of eight binary digits in size to monitor and trigger the start of the data sequence. For example, first, the sensing unit can send "0000" through the conductor, then send "1111", and send "1111" again to trigger the storage buffer to start processing the subsequent data signal as the beginning of a new data stream. Therefore, the sender and the receiver do not need to be synchronized in the transmission and reception of the data sequence. Instead, the sensing unit can repeatedly send the same data sequence to the receiver without the receiver unit confirming receipt or performing any handshake protocol.

[0079] Fig. 7A , Figure 7B , Figure 7C , Fig.7D , Fig. 7E , Figure 7F and Figure 7G (collectively referred to as "FIG. 7") illustrates one or more devices of a circuit tracer kit that may be used in some embodiments described herein. Fig. 7A , the inductive clamp 702 can transmit a series of data signals (such as Figure 5 ) is transmitted to the circuit tracker receiver 704. The receiver 704 can receive, process and display the data on its visual display, such as Fig. 7A In some embodiments, the visual display may indicate the ampere value measured by the inductive clamp. In other embodiments, other measurements may be displayed. In other embodiments, other information transmitted by the inductive clamp may not be displayed, but otherwise processed at the circuit tracer receiver so that the operation / function of the receiver device is changed / adjusted as desired.

[0080] It is important to note that the conductors on which the signal pulses are transmitted are the same conductors on which the actual circuit tracer kit is testing. In other words, the signal pulses with the data are not transmitted from the inductive clamp (or circuit tracer transmitter) to the circuit tracer receiver via just a separate channel. Instead, the data signal is transmitted on the same energized conductors that the user is testing the energized (or in some embodiments, non-energized) circuit on.

[0081] The inductive clamp 702 is configured to both sense signals on energized / unenergized conductors and have the ability to measure amperes and provide other measurement functions of a clamp meter (e.g., voltage, continuity, capacitance, diode, resistance, frequency, temperature). The inductive clamp 702 makes the circuit tracer kit more versatile by providing the user (e.g., an electrician) with a means of measuring current in addition to voltage measurement and continuity testing while also providing integrated circuit tracer functionality. By combining all of these functions into the kit 780, there is the benefit of not having to carry / use multiple testers when troubleshooting / repairing an electrical system. While the present disclosure contemplates a kit 780 having many components, the inductive clamp (or inductive / inductive clamp meter ISCM) may also be provided separately and provide the typical clamp meter functions described above. In addition, as long as any device (whether or not it is provided in the kit 780) stores (or pre-programs) a mapping table 600 or a predefined configuration (such as Figure 5 As shown) to process the sensed data communication sequence, the device can interoperate with the system disclosed in this article.

[0082] about Figure 7B, although the induction clamp device 920 can be implemented as (eg Fig. 9A ) includes an internal battery 928, but in some embodiments, the battery may not be included and an external battery 722 may be coupled to the inductive clamp 702. A wire (such as Figure 7C In some embodiments, some functions of the inductive clamp can be shared or offloaded to the external battery 722 for one or more purposes - for example, to avoid electromagnetic interference or other purposes.

[0083] about Figure 7C , an inductive clamp is shown for use in the systems and methods described herein, which can improve the functionality of a test equipment kit (e.g., a handheld circuit tracer device) by enabling the inductive clamp to drive a tracing signal into a conductor. The inductive clamp can be adjustably fixed (e.g., clamped) around the conductor being tested, rather than being directly electrically connected. The inductive clamp can also be used as a current transformer to measure the current flowing in the conductor being tested. The inductive clamp can be connected to a transmitter in the same manner to perform operations of driving a tracing signal or measuring current flow. The inductive clamp function can allow a signal to be induced on a conductor when the transmitter leads cannot be connected to the conductor. The current transformer function can detect, concentrate and measure the magnetic field generated when current flows through the conductor. This in turn can be converted to an ampere value. In some embodiments, the ampere value can be displayed on the screen of the circuit tracer receiver by passing the value as a data signal on the conductor being tested. Although other embodiments may use a wireless signal (e.g., Bluetooth) or a wired connection instead of a conductor being tested, at least one benefit of using a conductor is that it does not require additional materials or components to transmit and / or transmit on it. The conductor is inherent and necessarily present in any scenario where a circuit tracer kit is used.

[0084] about Fig.7DIn some embodiments, a digital clamp meter may include six (or more or less) components, including, but not limited to: (i) a current clamp (sensor); (ii) a clamp release lever; (iii) a dial (or rotary switch) for selecting the primary measurement (voltage, current, ohms); (iv) one or more buttons for selecting various functions; (v) an optional display into which the measurement readings may be viewed; and / or (vi) an optional input jack into which test leads may be inserted. Test leads may be flexible insulated wires (e.g., red for positive, black for negative) that are plugged into or connected to the input jacks on the clamp meter. They may be used as conductors from the item being tested to the clamp meter. The probe tip on each lead may be used to test the circuit and may sometimes include a removable probe CAT cover. The articulated jaws integrated into the design of the clamp meter allow a user (e.g., an electrician) to clamp the jaws around a conductor in an electrical system and then measure the current in that system without disconnecting it / de-energizing it. The clamp meter 760 includes electronics for sensing (e.g., measuring) the properties of a conductor passing through its jaws / clamps, but does not typically include any electronics for inducing a signal (e.g., a tracking signal or a data signal) in the conductor. In contrast, the inductive clamp 920 (shown in FIG. 9 ) of the present disclosure includes an inductive unit that includes both electronics for sensing and electronics for driving the induction of a signal on the conductor being measured.

[0085] In addition, Fig.7D Like the inductive pliers shown, the present disclosure contemplates other inductive devices that may be used and implemented in accordance with the systems and methods disclosed herein. For example, a fork meter may be used interchangeably in the context of the inductive pliers described herein. Like the pliers, the fork tool operates by using ferrite iron (AC / DC) or enameled coil core (AC) jaws to measure the current in a conductor located inside the fork. Unlike the pliers, the jaws of the fork tool are not completely enclosed (i.e., one end has a U-shaped opening) so that a conductor can be easily inserted between the jaws of the fork. In some embodiments, both inductive units operate using Hall effect sensors (e.g., semiconductors) mounted on the tool, such as Figure 8B and Figure 8C shown.

[0086] Fig. 7E An illustrative circuit tracer kit 780 is depicted that includes a number of devices and / or components disclosed for use in one or more embodiments described herein. A circuit tracer transmitter 782 may be used in place of an inductive clamp to transmit a series of data signals to a receiver device 704 through a conductor under test. Of course, the transmitter 782 may not use an inductive unit because it can be connected directly to the conductor, unlike the case where an inductive clamp is required. Nevertheless, Figure 5 and Figure 6The operations of the data signals and data communication protocols shown in may be used to implement similar functions disclosed herein.

[0087] Figure 7F It is shown that the systems and methods described herein can improve the functionality of test devices (e.g., handheld circuit tracer devices, inductive clamp devices, and socket testers) by allowing an additional (e.g., second) display. Figure 7F As shown, an additional display 772 may be located on a surface (e.g., bottom) of the housing of the handheld device 770 that is located in a plane that is generally perpendicular to the plane of the rigid jaws extending from the housing, as described in commonly assigned U.S. Patent No. 6,975,104, which is incorporated herein by reference in its entirety for all purposes. The additional display may replicate information and / or the type of information displayed on another existing display. For example, an ampere value may be displayed on a display of an inductive clamp device, a display of a tracker transmitter device, a display of a corresponding tracker receiver device, and / or a mobile device that is wirelessly synchronized with any of the above handheld devices.

[0088] refer to Figure 7F As described in U.S. Pat. No. 6,975,104, there are several ways to integrate multiple displays into the handheld device described herein. At least one benefit of mounting the displays on separate planes is that at least one display will be easily visible regardless of the orientation of the handheld device / meter / transmitter / receiver / tester. The (backlit) display does not require bending or twisting of conductors, does not require the user's head to be placed near or within the panel, and allows the user to easily read the bottom display while taking all measurements. In addition, in some embodiments, one or more display screens can be selectively covered by a pivotable flap. In another embodiment, the display screen can be pivotally mounted to the housing so it can be tilted to a suitable viewing position.

[0089] refer to Figure 7G , shows a stand-alone receptacle tester 790 that performs multiple tests at once, but the tests themselves fall into two basic categories: tests to determine that the receptacle has power; and tests to determine that the receptacle can be wired correctly for safe operation. Some receptacle testers include additional options (e.g., push buttons) for checking GFCI devices that supplement the test button within the GFCI and can be used to test electrical receptacles downstream of the GFCI receptacle.

[0090] Figure 7G One or more aspects of are integrated into the circuit tracer transmitter device 782 to provide a single device that enables electricians and users to perform multiple tasks more efficiently. For example, Fig. 7EThe illustrative kit 780 in includes multiple devices and / or components and may include a stand-alone socket tester 790. However, in some examples, the integrated circuit tracer transmitter includes the circuitry and functionality of an enhanced socket tester that performs one or more of the tests described herein on the socket while the tracer transmitter also performs other functions.

[0091] Fig. 8A The function and inner workings of the inductive clamp used in some embodiments are shown. Inside the plastic molding, the clamp / sensor / jaw of the inductive clamp meter may include ferrite iron and is designed to detect, concentrate and measure the magnetic field generated when current flows through a conductor. The inductive clamp includes an inductive unit, which includes Fig. 8A One or more elements shown in . The sensing unit is configured to generate a discrete sequence of signals on the conductor, which are then transmitted through the conductor to one or more receiver devices, such as a circuit tracer receiver.

[0092] Fig. 9A , Fig. 9B and Fig. 9C (collectively, "FIG. 9") depicts a schematic diagram of one or more devices of a circuit tracer kit in use. In the example shown, an inductive clamp 920 is provided for passing a conductor ( Fig. 9A The inductive clamp (indicated by the bold arrow in the figure) transmits the data to the circuit tracer receiver 910. The inductive clamp (the inner workings of which are shown in Figure 8) is equipped with an inductive unit that induces a series of data signals (in the tracing signal) onto the conductor. Fig.7D As shown in , the sensing unit can be used to measure the current flowing in the conductor (or read other measurements) through the various measurements visible around the dial / rotary switch. At the same time, the circuit tracer receiver 910 is equipped with a communication interface for receiving the data signal sequence on the conductor and processing the sequence by a microcontroller (or other circuit) in the circuit tracer receiver.

[0093] although Fig. 9A 9 shows that the inductive clamp device 920 includes a battery 928, but in some embodiments, the battery may not be included, and an external battery 722 may be coupled to the inductive clamp 702, such as Figure 7B As shown. Wires can be used for coupling, such as Figure 7C In addition, although Fig. 9A An inductive clamp 920 is shown, but this device may be replaced by another device including an inductive element, such as a fork meter or other similar device.

[0094] about Fig. 9BIn some examples, the communication interface 931 may include a digital-to-analog chipset to convert the desired binary "0" or binary "1" output of the microcontroller 933 on the conductor under test, as the inductive unit may not be present on the particular circuit tracer transmitter device 930. Instead of an inductive clamp to transmit the data signal sequence through the conductor under test, the circuit tracer transmitter 782 may use other methods to transmit through the conductor to the receiver device 910. However, Figure 5 and Figure 6 The operations of the data signals and data communication protocols shown in may be used to implement similar functions disclosed herein.

[0095] about Fig. 9C , the circuit transmitter device 940 may include a communication interface 941, which in some examples has one or more ports to which an accessory clip / probe / adapter may be connected. For example, the circuit transmitter device 940 may use an adapter 945 with a three-prong plug to test an electrical wall outlet / receptacle (e.g., a 3-wire outlet). In other examples, the adapter 945 may include an isolation ground adapter that verifies that the outlet is isolated from the system ground and connected to other devices on the branch circuit. The isolation ground adapter creates a parallel path to ground, which causes the ground impedance reading of the adapter to be lower than the ground impedance reading of the outlet with isolation ground; if the two readings are the same, the outlet does not have an isolation ground, but if the reading obtained using the isolation ground adapter is lower, the outlet has an isolation ground. In another example, the adapter 947 may include a ground continuity adapter that verifies that the chassis and / or device chassis is properly connected to the system ground. The circuit transmitter device 940 may include circuitry for a socket tester 943 as described herein. In another embodiment, the socket tester 943 may be implemented as computer-readable instructions stored in the memory 935 and executed by the microcontroller 933.

[0096] Although Fig. 9C 940 is shown with an accessory port, but the present disclosure also contemplates that Fig. 9A The inductive clamp device 920 shown in FIG. 1 may include an accessory port and provide the same functionality as the transmitter device 940. Similarly, Fig. 9C The transmitter device 940 in may include Figure 7F , the additional display 772 shown in FIG. 3 , the continuity load tester circuit 300A shown in FIG. 3 , and / or the Figure 5 In addition, although several embodiments are described for a three-prong plug (or three-wire socket), the present disclosure is not limited thereto; rather, the present disclosure contemplates a multi-prong plug that accommodates different global standards (including four-prong plugs and two-prong plugs) as well as different voltage levels and other adjustments.

[0097] refer to Fig.10 , an example of an exemplary accessory adapter 945 is shown. The circuit tracer transmitter 782 includes circuitry and / or logic for an integrated outlet tester 943. In one example, the transmitter 782 transmits a signal that is placed on a conductor via an adapter 945, alligator clips, or inductive clamps. One or more receiver devices 704 tuned to the same signal sense the signal and determine its strength to locate a circuit breaker, conductor, or fault. For an integrated outlet tester, a screen display on the transmitter device 782 may include a display with an HGN or similar indicator (as shown in FIG. 12 ). The system may also add ground sensing to the receiver and wires. As described with respect to Figure 7G As explained, at least one benefit of integrating a socket tester into a single device is that it enables electricians and users to perform multiple tasks more efficiently. For example, an integrated circuit tracer transmitter 782 including the circuitry and functionality of an enhanced socket tester can perform one or more tests described below on a socket while the tracer transmitter also performs other functions.

[0098] With respect to FIG. 11 , exemplary aspects of a circuit in a circuit tracer transmitter are disclosed that integrates the ability to test electrical socket wiring. The integrated socket tester is capable of testing and visually indicating in a single integrated circuit tracer transmitter Fig.11A , Fig. 11B and / or Fig. 11C One or more of the following outlet wiring configurations shown in: (Test #1) Wiring is correct; (Test #2) Open ground (e.g., in some examples, when resistance exceeds 3.0 ohms); (Test #3) Reversed polarity (hot and neutral are swapped); (Test #4) Open hot; (Test #5) Open neutral; (Test #6) Hot and ground are reversed; (Test #7) Hot to neutral and hot open, and (Test #8) Open GFCI test. The integrated outlet tester can also perform one or more tests, such as testing to determine false grounds or illegal grounds, i.e., an unintentional connection between the neutral and ground conductors anywhere in the branch circuit outside the panel.

[0099] refer to Fig.11A , shows an illustrative example of aspects of a sensing circuit 1000 capable of performing test numbers 1, 2, 3, and 4. The outputs of these circuits can be inputs to analog-to-digital (A2D) converters that are integrated into a microcontroller and / or operate independently. Similarly, equivalent circuits can be implemented to perform test numbers 5-7. The screen display 939 of the handheld device 940 can display an evaluation of the socket test.

[0100] also, Fig.11AThe zero crossing detection sensing circuit is shown in . This can be used by the microcontroller 933 in the circuit tracer transmitter to measure the frequency of the line voltage. This frequency can then be displayed along with the line voltage and the socket wiring information.

[0101] Listed below are some examples of software implemented logic / steps (e.g., computer executable instructions stored on a non-transitory tangible medium) for detecting faults. Additional software / firmware as well as additional sensing circuits may be added to detect more faults or other conditions. Fig.11A , in step 1, the circuit can measure VPN. In step 2, the circuit determines that if VPN is less than a threshold, the hot wire is not connected. In step 3, the circuit determines that if VPN is greater than a threshold, the neutral and ground wires may be open. In step 4, if VENLR is approximately zero, only the neutral wire is open. In addition, continue to refer to Fig.11A , in step 5, the circuit can measure the voltage at A2D_VENLR. In step 6, the circuit determines that if the A2D_VENLR voltage is above a threshold, then the ground wire is open or the polarity is reversed. In step 7, if A2D_VENHR is below a threshold, then the ground wire is open. In step 8, if A2D_VENHR is above the threshold in step 3, then the polarity is reversed. And, in step 9, if A2D_VENLR is below the threshold in step 2, then the outlet connection / wiring is correct. As a result of performing the steps, in some embodiments, the tracker transmitter device is Fig. 12A The wiring status 1202 is displayed in the manner shown in , which shows the hot, ground and neutral indicators with on, off or flashing indications.

[0102] In an alternative embodiment, Fig. 11B The circuit 1002 shown in FIG. 1 may be used in conjunction with a visual indicator to indicate a wiring error. The visual indicator 1204 may be as shown in FIG. Fig. 12B The circuit is shown in Figure 1, which uses colored lights / LEDs to indicate different potential scenarios determined by the integrated outlet tester. This circuit also provides a GFCI test by pressing S1 to ground the load.

[0103] refer to Fig. 11C In yet another alternative embodiment, the current sensing circuit 1004 may replace Fig. 11B The visual indicators (L1, L2 and L3) shown in are used; Fig. 11C An illustrative configuration is shown in . The sensed current is provided to a microcontroller analog-to-digital (A2D) converter. The current detected by each of the three current sensors is used to determine the wiring status and then displayed on a display (e.g., OLED or other display) of the circuit tracer transmitter.

[0104] With respect to FIG12 , exemplary visual indicators on an integrated circuit tracer transmitter with socket test functionality are shown. The visual indicator may be an LED light or other type of light, or may be a screen display configured to allow for the display of images, icons, and / or characters. In some examples (including the example in FIG11 ), the screen display may output human-readable information without necessarily providing a legend to the user—for example, text (or some variation of that text) may be displayed on the display in place of a binary or three-level light indicator. For example, a user of device 940 may read “correct wiring” or “reverse polarity” on the screen display. Additionally, in some examples, the input / output device 939 of device 940 may output an audible indicator in place of or in addition to the visual indicator. The audible indicator may be via a speaker that outputs a voice message via configuration of the microcontroller block. The screen display may be located on the tracer transmitter 940, or may be provided as described herein (e.g., Figure 1B ) is communicatively coupled with the tracker transmitter 782.

[0105] Although the present invention has been described in certain specific aspects, many additional modifications and variations will be apparent to those skilled in the art. Specifically, any of the various processes described above can be performed in an alternative order and / or in parallel (on different computing devices) to achieve similar results in a manner more suitable for the requirements of a particular application. Therefore, it should be understood that the present invention can be implemented in a manner different from that specifically described without departing from the scope and spirit of the present invention. Therefore, the embodiments of the present invention should be considered in all respects to be illustrative and not restrictive. Therefore, the scope of the present invention should not be determined by the illustrated embodiments, but by the attached claims and their equivalents.

[0106] Some illustrative embodiments are disclosed herein, including but not limited to:

[0107] Implementation Method 1

[0108] A circuit tracer transmitter with integrated continuity test for locating electrical wiring faults, including:

[0109] ○Line coupling transformer;

[0110] ○Current sensing circuit;

[0111] ○Microcontroller;

[0112] an output driver configured to drive a line coupling transformer;

[0113] ○Indicator;

[0114] o wherein the current sensing circuit is configured to sense current on a primary driver side of a line coupled transformer and input data indicative of the current;

[0115] o wherein the microcontroller is configured to perform continuity testing by (unless prohibited) automatically comparing input data to a current threshold level and generating an alarm using an indicator if the current threshold level is reached or exceeded (unless prohibited);

[0116] and

[0117] vWhere the alarm indicates continuity on the test leads on the secondary driver side of the line coupling transformer.

[0118] According to an implementation of implementation 1, it also includes:

[0119] ○ Voltage sensing circuit on the secondary driver side of the line coupling transformer;

[0120] o Wherein, if the voltage detection circuit detects a live circuit, the continuity test is prohibited.

[0121] • The embodiment of embodiment 1, wherein the current sensing circuit is configured to measure the current consumption input to the output driver.

[0122] The embodiment of embodiment 1, wherein the current sensing circuit is configured to measure current consumption output from the output driver.

[0123] The embodiment of embodiment 1, wherein the current sensing circuit comprises an analog-to-digital converter and sends a digital value as input data indicative of the current.

[0124] • An embodiment according to embodiment 1, wherein the indicator is one of a visual display, an audio output, or a combination thereof.

[0125] • An embodiment according to embodiment 1 wherein the circuit tracer transmitter (or other hand held test device) includes an additional screen display located in a plane perpendicular to the existing visual display, wherein the vertical plane is located at the bottom end of the transmitter / test device.

[0126] • The embodiment of embodiment 1, further comprising a display, wherein the indicator is a visual alert displayed on the display, and wherein the display is configured to allow display of images, icons and / or characters.

[0127] • The embodiment of embodiment 1, wherein the indicator is an LED light, wherein illumination of the LED light indicates continuity on the test lead.

[0128] • The embodiment of embodiment 1, wherein the indicator is a buzzer, wherein a sound emitted by the buzzer indicates continuity on the test lead.

[0129] According to an implementation of implementation 1, it also includes:

[0130] ○ Voltage sensing circuit located on the secondary driver side of the line coupling transformer;

[0131] ○ Among them, if the voltage detection circuit detects a live circuit, the continuity test is prohibited,

[0132] Among other things, detection of a live circuit results in an alarm.

[0133] According to the implementation of implementation 1, it also includes:

[0134] ○ Voltage sensing circuit located on the secondary driver side of the line coupling transformer;

[0135] o Wherein the continuity test is inhibited if the voltage detection circuit detects a live circuit, wherein the detection of a live circuit causes an alarm, the alarm comprising one of a displayed image, icon or character, an illuminated LED, or an audio alarm.

[0136] Implementation Method 2

[0137] A circuit tracer transmitter with integrated continuity test for locating electrical wiring faults, comprising:

[0138] ○Line coupling transformer;

[0139] ○Current sensing circuit;

[0140] ○Microcontroller;

[0141] an output driver configured to drive a line coupling transformer;

[0142] o a wireless module configured to wirelessly transmit the alarm to a display;

[0143] ○ Wherein the current sensing circuit is configured to sense the primary driver of the line coupling transformer

[0144] a current on the side and input data indicative of the current;

[0145] o Wherein the microcontroller is configured to perform continuity testing by automatically comparing input data to a current threshold level and, unless prohibited,

[0146] reaches or exceeds a current threshold level, an alarm is generated; and

[0147] o Wherein an alarm indicates continuity on the test leads on the secondary driver side of the line coupling transformer.

[0148] According to the implementation of implementation 2, it also includes:

[0149] ○ Voltage sensing circuit on the secondary driver side of the line coupling transformer;

[0150] o Wherein, if the voltage detection circuit detects a live circuit, the continuity test is prohibited.

[0151] • The embodiment of embodiment 2, wherein the current sensing circuit is configured to measure the current consumption input to the output driver.

[0152] The embodiment of embodiment 2, wherein the current sensing circuit is configured to measure current consumption output from the output driver.

[0153] The embodiment of embodiment 2, wherein the current sensing circuit comprises an analog-to-digital converter and sends a digital value as input data indicative of the current.

[0154] The embodiment according to embodiment 2 further comprises a display, wherein the display is configured to wirelessly communicate with the wireless module via Bluetooth.

[0155] The embodiment according to embodiment 2 further comprises a display, wherein the display is configured to wirelessly communicate with the wireless module via Wi-Fi.

[0156] The embodiment according to embodiment 2, further comprising a display, wherein the display is configured to wirelessly communicate with the wireless module, wherein the display is configured to allow images, icons and / or characters to be displayed as an alarm.

[0157] According to the implementation of implementation mode 2, further comprising:

[0158] ○ Voltage sensing circuit located on the secondary driver side of the line coupling transformer;

[0159] ○ Among them, if the voltage detection circuit detects a live circuit, the continuity test is prohibited,

[0160] Among them, the detection of a live circuit causes an alarm.

[0161] The embodiment according to embodiment 2 further comprises:

[0162] ○ Voltage sensing circuit located on the secondary driver side of the line coupling transformer;

[0163] o Wherein the continuity test is inhibited if the voltage detection circuit detects a live circuit, wherein the detection of a live circuit causes an alarm, the alarm comprising one of a displayed image, icon or character, an illuminated LED, or an audio alarm.

[0164] Implementation 3

[0165] A method of performing a continuity test using the circuit tracer transmitter of embodiment 1, the method comprising:

[0166] ○ Use a current sensing circuit to sense the current on the primary driver side of the transformer;

[0167] ○ receiving input data indicating current through a microcontroller;

[0168] ○ The input data is compared with the current threshold level by the microcontroller;

[0169] ○ If the current threshold level is reached or exceeded, an indicator is generated by the microcontroller

[0170] Become an alarm;

[0171] o Where the alarm indicates continuity on the test leads on the secondary driver side of the transformer.

[0172] • The embodiment according to embodiment 3, wherein the transformer is a line coupled transformer.

[0173] • The embodiment of embodiment 3, wherein the transformer is a line coupled transformer, and wherein the sensing by the current sensing circuit is done at the input of an output driver driving the line coupled transformer.

[0174] • The embodiment of embodiment 3, wherein the transformer is a line coupled transformer, and wherein the sensing by the current sensing circuit is done at the output of an output driver driving the line coupled transformer.

[0175] The embodiment of embodiment 3, wherein the current sensing circuit comprises an analog-to-digital converter and sends a digital value as input data indicative of the current.

[0176] • An embodiment according to embodiment 3, wherein the indicator is one of a visual display, an audio output, or a combination thereof.

[0177] • The embodiment of embodiment 3, wherein the indicator is a visual alert displayed on a display, wherein the display allows for display of images, icons and / or characters, and wherein the visual alert displayed on the display indicates continuity on the test lead.

[0178] • The embodiment of embodiment 3, wherein the indicator is an LED light, wherein illumination of the LED light indicates continuity on the test lead.

[0179] • The embodiment of embodiment 3, wherein the indicator is a buzzer, wherein a sound emitted by the buzzer indicates continuity on the test lead.

[0180] The embodiment of embodiment 3, wherein the transformer is a line coupled transformer, and further comprising disabling the continuity test by the microcontroller if a voltage detection circuit on a secondary driver side of the line coupled transformer detects a live circuit.

[0181] The embodiment of embodiment 3, wherein the transformer is a line coupled transformer, and further comprising, if a voltage detection circuit on a secondary driver side of the line coupled transformer detects a live circuit, disabling the continuity test by the microcontroller, and generating an alarm by the microcontroller upon detection of a live circuit.

[0182] The embodiment of embodiment 3, wherein the transformer is a line coupled transformer, and further comprising, if a voltage detection circuit on the secondary driver side of the line coupled transformer detects a live circuit, disabling the continuity test by the microcontroller, and generating an alarm by the microcontroller after the live circuit is detected, the alarm comprising one of a displayed image, icon or character, an illuminated LED, or an audio alarm.

[0183] Implementation 4

[0184] A method of performing a continuity test using the circuit tracer transmitter of embodiment 1, the method comprising:

[0185] o Using a current sensing circuit to sense the current on the primary driver side of the transformer;

[0186] ○ receiving input data indicating current through a microcontroller;

[0187] ○ The input data is compared with the current threshold level by the microcontroller;

[0188] ○ Generate an alarm through the microcontroller if the current threshold level is reached or exceeded;

[0189] ○The alarm is sent to the wireless module through the microcontroller, which is configured to

[0190] The report is sent to the display;

[0191] o Wherein, an alarm indicates continuity on the test leads on the secondary driver side of the transformer.

[0192] • The embodiment according to embodiment 4, wherein the transformer is a line coupled transformer.

[0193] • The embodiment of embodiment 4, wherein the transformer is a line coupled transformer, and wherein the sensing by the current sensing circuit is done at the input of an output driver driving the line coupled transformer.

[0194] • The embodiment of embodiment 4, wherein the transformer is a line coupled transformer, and wherein the sensing by the current sensing circuit is done at the output of an output driver driving the line coupled transformer.

[0195] The embodiment of embodiment 4, wherein the current sensing circuit comprises an analog-to-digital converter and sends a digital value as input data indicative of the current.

[0196] • The embodiment of embodiment 4, wherein the display allows for display of images, icons and / or characters, and wherein a visual alert displayed on the display indicates continuity on the test lead.

[0197] The embodiment of embodiment 4, wherein the transformer is a line coupled transformer, and further comprising disabling the continuity test by the microcontroller if a voltage detection circuit on a secondary driver side of the line coupled transformer detects a live circuit.

[0198] The embodiment of embodiment 4 wherein the transformer is a line coupled transformer and further comprising, if a voltage detection circuit on a secondary driver side of the line coupled transformer detects a live circuit, disabling the continuity test by the microcontroller and generating an alarm by the microcontroller upon detection of a live circuit.

[0199] The embodiment of embodiment 4, wherein the transformer is a line coupled transformer, and further comprising, if a voltage detection circuit on a secondary driver side of the line coupled transformer detects a live circuit, disabling a continuity test by a microcontroller, and generating an alarm by the microcontroller after detecting the live circuit, wherein the alarm is sent to a display using a wireless module, and the alarm includes one of a displayed image, icon, or character.

[0200] Implementation method 5

[0201] A circuit tracer transmitter for locating electrical wiring faults, comprising:

[0202] ○Induction clamp;

[0203] ○ a tracking circuit configured to drive a tracking signal into the inductive clamp;

[0204] ○ In which the same inductive clamp is used to measure the current flowing in the conductor.

[0205] Implementation 6

[0206] According to the implementation of implementation mode 5, it also includes:

[0207] o a current transformer function circuit configured to detect a magnetic field when current flows through a conductor,

[0208] And convert the test results into ampere values;

[0209] o A display configured to display an ampere value.

[0210] • The embodiment according to embodiment 6, wherein the current transformer functional circuit is integrated as a part of the inductive clamp.

[0211] • An implementation according to implementation 6, wherein the display and current transformer functional circuitry are integrated as part of the inductive clamp.

[0212] Implementation 7

[0213] A circuit tracer device with integrated continuity test for locating electrical wiring faults, comprising:

[0214] ○ Conventional circuit tracker receiver;

[0215] ○ A circuit tracker transmitter that is distinct and separate from a circuit tracker receiver, which

[0216] The circuit tracker transmitter includes at least:

[0217] ■ A line-coupled transformer having a primary driver side and a secondary driver side;

[0218] ■Current sensing circuit;

[0219] ■Microcontroller or its equivalent;

[0220] ■ an output driver configured to drive a line coupling transformer; and

[0221] ■ Voltage sensing circuit on the secondary driver side of the line coupling transformer;

[0222] ○ Wherein the current sensing circuit is configured to sense the primary driver of the line coupling transformer

[0223] Input data of current on the side and indicating current;

[0224] o Wherein, the voltage detection circuit is configured to detect whether the circuit tracer transmitter is powered and inhibit continuity testing.

[0225] ○ Wherein the circuit assembly is configured to trigger the execution of the continuity test by:

[0226] Automatically compares the input data to a current threshold level and, if the continuity test is not inhibited, if the current threshold level is met (e.g., reached or exceeded),

[0227] Generate alerts using indicators;

[0228] o wherein the alarm indicates continuity on the test leads on the secondary driver side of the line coupling transformer; and

[0229] o Wherein, if the voltage detection circuit detects a live (eg, energized) circuit, the continuity test is inhibited.

[0230] An embodiment according to embodiment 7, which includes one or more of the foregoing sub-embodiments of embodiment 1.

[0231] Implementation 8

[0232] A circuit tracer transmitter with integrated continuity test for locating electrical wiring faults, comprising:

[0233] ○Line coupling transformer;

[0234] ○Current sensing circuit;

[0235] ○Microcontroller;

[0236] an output driver configured to drive a line coupling transformer;

[0237] ○Indicator;

[0238] ○ Voltage sensing circuit on the secondary driver side of the line coupling transformer;

[0239] o wherein the current sensing circuit is configured to sense current on a primary driver side of a line coupled transformer and input data indicative of the current;

[0240] ○ Where the microcontroller is configured to perform continuity testing by automatically comparing input data to current threshold levels and, unless prohibited,

[0241] or exceeds a current threshold level, an indicator is used to generate an alarm;

[0242] o wherein the alarm indicates continuity on the test leads on the secondary driver side of the line coupling transformer; and

[0243] o Wherein if the voltage detection circuit detects a live circuit, the continuity test is prohibited.

[0244] An embodiment according to embodiment 8, which includes one or more of the foregoing sub-embodiments of embodiment 1.

[0245] Implementation method 9

[0246] A circuit tracer kit comprising at least one circuit tracer receiver and inductive clamps capable of transmitting data through a conductor under test, comprising:

[0247] ○ An induction clamp equipped with an induction unit (as shown in FIG8 );

[0248] ■ the sensing unit comprises a circuit configured to induce a data signal sequence (in the tracing signal) onto the conductor;

[0249] ■ wherein the same sensing unit is provided with a circuit configured to measure (or sense) a current flowing in a conductor;

[0250] o The circuit tracer receiver is equipped with a communication interface for receiving the sequence of data signals on the conductor and processing the sequence by a microcontroller (or other circuit) in the circuit tracer receiver.

[0251] The embodiment according to embodiment 9, wherein the sensing unit comprises: a first electronic device and a second electronic device, the first electronic device is used to drive a current that induces the data signal sequence into the conductor; the second electronic device is used to sense the current flowing in the conductor.

[0252] o In some embodiments, the first electronic device and the second electronic device operate simultaneously to perform current measurement and sense the tracking signal simultaneously.

[0253] o In an alternative embodiment, the first electronic device and the second electronic device operate alternately by performing current measurements and then sensing a tracking signal using the previously measured data.

[0254] • An embodiment according to embodiment 9, wherein the inductive clamp is replaced by an inductive device which does not completely surround the conductor under test, but partially surrounds the conductor, for example in the form of a U-shaped (or other shaped) fork meter.

[0255] An embodiment according to embodiment 9, wherein the tracing signal from the inductive clamp to the circuit tracer receiver indicates whether the conductor is energized or de-energized by changing the pulse duration of the tracing signal from a first duration (e.g., 10 milliseconds pulse duration indicating power on) to a second duration (e.g., 20 milliseconds pulse duration indicating de-energization) via the inductive unit.

[0256] o In some implementations, a third, fourth, etc. different pulse widths / durations may be used to indicate numbers from 0 to 9.

[0257] o In some embodiments, a third, fourth, fifth, sixth, etc. different pulse widths / durations may be used for each pulse width to indicate an ASCII character or other mapping (based on a custom mapping table stored in memory).

[0258] An embodiment according to embodiment 9, wherein the tracking signal from the inductive clamp to the circuit tracker receiver indicates a binary 0 by transmitting a tracking signal pulse having a first duration (e.g., a 10 millisecond pulse duration) by the inductive unit, or indicates a binary 1 by transmitting a tracking signal pulse having a second duration (e.g., a 20 millisecond pulse duration) by the inductive unit.

[0259] In some embodiments, the sensing unit may use binary numbers to improve the method of sending data (e.g., numerical values). At least one benefit of this method is that it may require fewer pulses to indicate the current ampere reading (or any other measurement or data transmitted by the conductor being tested).

[0260] o In some embodiments, a stream of pulses may be transmitted through a conductor such that a combination / sequence of consecutive pulses provides a 4-bit binary number, which may indicate decimal numbers 0-15.

[0261] o A frame start pulse (of a pulse sequence) having a different (third predetermined width) duration may be used to indicate the start of the current read pulse. Similarly, a frame end pulse having a duration similar to the frame start pulse may be used to indicate the end of a message. The frame start pulse and the frame end pulse may be used to enable communication of data messages of different bit lengths.

[0262] An embodiment according to embodiment 9, wherein the memory of the circuit tracer receiver stores a mapping table (e.g. Figure 6 ), used to process the data signal sequence.

[0263] • An embodiment according to embodiment 9, wherein the processing of the data signal sequence by the circuit tracker receiver is performed without handshaking with the sensing unit.

[0264] • An embodiment according to embodiment 9, wherein the communication with the circuit tracer receiver is unidirectional such that the circuit tracer receiver does not transmit back to the inductive clamp (e.g., no acknowledgment of receipt, no handshake, etc.).

[0265] ○ Where the communication is not via any of the following: Bluetooth, wireless communication protocols, or two-way communication protocols.

[0266] • An embodiment according to embodiment 9, wherein the sequence of data signals is received and processed by a circuit tracer receiver and displayed on a visual display thereof.

[0267] o In some embodiments, the visual display indicates the ampere value measured by the inductive clamp. In other embodiments, other measurements are displayed. In other embodiments, other information transmitted by the inductive clamp is displayed or otherwise processed at the circuit tracer receiver (if not already displayed).

[0268] ·An embodiment according to embodiment 9, wherein the inductive clamp is replaced by a circuit tracer transmitter as described in any one of embodiments 1, 2, 5 or 8 (or appropriate corresponding sub-embodiments derived therefrom); and the inductive unit includes one or more circuits or electrical components for generating a tracing signal on the conductor under test and one or more circuits or electrical components for sensing the current on the conductor under test.

[0269] Embodiment 10

[0270] An inductive clamp configured to communicate with at least one circuit tracer receiver, the inductive clamp comprising executable instructions that, when executed by the microcontroller, cause the inductive clamp to:

[0271] ○ Transmits data through the conductor being tested, where the conductor will sense the clamp and the circuit tracer

[0272] a receiver communicatively coupled; and

[0273] ○Measure the current flowing in a conductor;

[0274] ○ The data transmitted through the conductor includes:

[0275] ■ Inducing the data signal sequence (in the tracking signal) onto the conductor through the induction unit of the induction clamp;

[0276] ■ wherein the same sensing unit is configured to measure the current flowing in the conductor;

[0277] ○ Wherein the circuit tracer receiver is equipped with a communication interface for receiving the data signal sequence on the conductor and transmitting the data signal sequence to the circuit tracer receiver through a microcontroller (or other circuit) in the circuit tracer receiver.

[0278] Process the sequence.

[0279] An embodiment according to embodiment 10, wherein the inductive clamp comprises one or more features described in any one of embodiments 1, 2, 5 or 8 (or appropriate corresponding sub-embodiments derived therefrom); and the inductive unit comprises one or more circuits or electrical components for generating a tracking signal on the conductor under test and one or more circuits or electrical components for sensing current in the conductor under test.

[0280] Implementation 11

[0281] A sensing device (e.g., a sensing clamp, a sensing fork, or other device having a sensing unit) configured to communicate with at least one circuit tracer receiver, the sensing device including executable instructions that, when executed by the microcontroller, cause the sensing device to:

[0282] ○ Transmit data through the conductor being tested, where the conductor connects the sensing device to the circuit tracer

[0283] a receiver communicatively coupled; and

[0284] ○Measure the current flowing in a conductor;

[0285] ○ Wherein, transmitting data via a conductor includes:

[0286] ■ Inducing the data signal sequence (in the tracking signal) onto the conductor through the induction unit of the induction device;

[0287] ■ wherein the same sensing unit is configured to measure the current flowing in the conductor;

[0288] ○ Wherein, the circuit tracer receiver is equipped with a communication interface for receiving the data signal sequence on the conductor and transmitting the data signal sequence to the circuit tracer receiver through a microcontroller (or other circuit) in the circuit tracer receiver.

[0289] Process the sequence.

[0290] An embodiment according to embodiment 11, wherein the sensing device includes one or more features described in any one of embodiments 1, 2, 5 or 8 (or appropriate corresponding sub-embodiments derived therefrom); and the sensing unit includes one or more circuits or electrical components for generating a tracking signal on the conductor under test and one or more circuits or electrical components for sensing the current in the conductor under test.

[0291] Implementation 12

[0292] A circuit tracer transmitter with an integrated socket tester, comprising:

[0293] ○Current sensing circuit;

[0294] ○Microcontroller;

[0295] ○Indicator;

[0296] ○ wherein the current sensing circuit is configured to sense current and input data indicative of the current;

[0297] o wherein the microcontroller is configured to perform a set of tests on the electrical socket by connecting to the live, earth and neutral wires of the socket; and

[0298] o Wherein connection to the wiring of the outlet is made by an accessory that plugs into one or more ports of the circuit tracer transmitter.

[0299] The embodiment of embodiment 12, wherein the indicator is one of a visual display, an audio output, or a combination thereof, and wherein the circuit tracer transmitter (or other handheld testing device) includes an additional screen display located in a plane perpendicular to the existing visual display.

[0300] • The embodiment of embodiment 12, wherein the vertical plane is located at a bottom end of the transmitter / test device, and wherein the display is configured to allow for display of images, icons and / or characters.

[0301] • The embodiment of embodiment 12, wherein the indicator is an LED light, wherein illumination of the LED light indicates continuity on the test lead.

[0302] The embodiment according to embodiment 12, wherein the circuit tracer transmitter is further integrated with a circuit for load continuity testing to locate electrical wiring faults, comprising:

[0303] ○Line coupling transformer;

[0304] ○ An output driver configured to drive a line coupling transformer;

[0305] ○Wherein the current sensing circuit is further configured to sense the primary drive current of the line coupling transformer

[0306] The current on the device side and the input data indicating the current;

[0307] o wherein the microcontroller is further configured to perform continuity testing by automatically comparing input data to a current threshold level and, unless prohibited, generating an alarm using an indicator if the current threshold level is reached or exceeded; and

[0308] o Wherein an alarm indicates continuity on the test leads on the secondary driver side of the line coupling transformer.

[0309] The embodiment of embodiment 12, wherein the microcontroller executes instructions for socket testing, the instructions causing a set of tests to be performed, including:

[0310] ○(Test #1) Wiring is correct;

[0311] ○(Test #2) Open circuit to ground;

[0312] ○ (Test #3) Polarity reversal (hot and neutral are swapped);

[0313] ○(Test #4) Live wire open circuit;

[0314] ○(Test #5) Neutral line open circuit;

[0315] ○(Test #6) Hot and ground are swapped;

[0316] ○ (Test #7) Hot to Neutral and Hot open; and / or

[0317] ○ (Test #8) Open Circuit GFCI Test.

[0318] Implementation 13

[0319] A circuit tracer transmitter with an integrated continuity test and an integrated 3-wire receptacle tester for locating electrical wiring faults, comprising:

[0320] ○Line coupling transformer;

[0321] ○Current sensing circuit;

[0322] ○Microcontroller;

[0323] ○Indicator;

[0324] an output driver configured to drive a line coupling transformer;

[0325] o a wireless module configured to wirelessly transmit the alarm to a display;

[0326] ○ Wherein the current sensing circuit is configured to sense the primary driver of the line coupling transformer

[0327] Input data of current on the side and indicating current;

[0328] ○ Wherein, the microcontroller is configured as:

[0329] ■continuity testing by automatically comparing input data to a current threshold level and, unless prohibited, generating an alarm if the current threshold level is reached or exceeded; and

[0330] ■ Perform a set of tests on the electrical socket by making connections to the socket's live, earth and neutral wires; and

[0331] o Wherein connection to the outlet wiring is made via an accessory that plugs into one or more ports of the circuit tracer transmitter.

[0332] o Wherein an alarm indicates continuity on the test leads on the secondary driver side of the line coupling transformer.

Claims

1. A circuit tracer transmitter with integrated continuity test for locating electrical wiring faults, comprising: Line coupling transformer; a current sensing circuit configured to sense current on a primary driver side of a line coupled transformer and input data indicative of the current; Indicator; an output driver configured to drive a line coupling transformer; and a microcontroller configured to perform continuity testing by automatically comparing input data to a current threshold level and, unless prohibited, generating an alarm using an indicator when the current threshold level is reached or exceeded, Wherein the alarm indicates continuity on the test leads on the secondary driver side of the line coupling transformer.

2. The circuit tracer transmitter of claim 1, further comprising: A voltage detection circuit on the secondary driver side of the line coupling transformer, wherein continuity testing is inhibited when the voltage detection circuit detects a live circuit. 3 . The current tracker transmitter of claim 1 , wherein the current sensing circuit is configured to measure current consumption input to the output driver. 4 . The current tracker transmitter of claim 1 , wherein the current sensing circuit is configured to measure current consumption outputted from the output driver.

5. The current tracker transmitter of claim 1 , wherein the current sensing circuit comprises: An analog-to-digital converter is configured to send a digital value as input data indicative of the current.

6. The circuit tracer transmitter of claim 1, further comprising: A voltage sensing circuit on the secondary driver side of the line coupling transformer, wherein the continuity test is inhibited when the voltage sensing circuit detects a live circuit, wherein the detection of the live circuit causes an alarm.

7. The circuit tracer transmitter of claim 1, further comprising: A voltage detection circuit on the secondary driver side of the line coupling transformer, wherein the continuity test is inhibited when the voltage detection circuit detects a live circuit, wherein the detection of the live circuit causes an alarm, the alarm including at least one of a displayed image, icon or character, an illuminated LED, an audio alarm, or a combination thereof.

8. The circuit tracer transmitter of claim 1, wherein the alert comprises at least one of a visual output, an audio output, or a combination thereof.

9. The circuit tracer transmitter of claim 8, wherein the alarm comprises a visual output, wherein the indicator comprises: First screen display; and A second screen display is on a plane perpendicular to the first screen display, wherein the perpendicular plane is located at a bottom end of the circuit tracer transmitter.

10. The circuit tracer transmitter of claim 8, wherein the alert comprises a visual output, and wherein the indicator comprises a screen display configured to allow for the display of images, icons and / or characters.

11. The circuit tracer transmitter of claim 8, wherein the indicator comprises an LED light, wherein illumination of the LED light indicates continuity on the test lead.

12. The circuit tracer transmitter of claim 8, wherein the indicator comprises a buzzer, wherein a sound emitted by the buzzer indicates continuity on the test lead.

13. The circuit tracer transmitter of claim 1, further comprising: A wireless module configured to wirelessly transmit the alert to a screen display physically separate from the circuit tracer transmitter.

14. The circuit tracker transmitter of claim 13, wherein the wireless module is configured to communicate via at least one of Bluetooth, Wi-Fi, or a combination thereof; and wherein the alert comprises at least one of an image, an icon, and / or a character.

15. The circuit tracer transmitter of claim 1, further comprising: Induction clamps; and A tracing circuit is configured to drive a tracing signal to an inductive clamp, wherein the inductive clamp is used to measure current flowing in a conductor subject to a continuity test performed by the microcontroller.

16. The circuit tracer transmitter of claim 15, further comprising: a current transformer function circuit configured to detect a magnetic field when current flows through the conductor and convert the detection result into an ampere value; Wherein the indicator is configured to display an ampere value.

17. The circuit tracer transmitter of claim 1, further comprising: An inductive clamp including a current transformer functional circuit; and A tracing circuit is configured to drive a tracing signal into an inductive clamp for measuring current flowing in a conductor subject to a continuity test performed by a microcontroller.

18. The circuit tracer transmitter of claim 1, further comprising: An inductive clamp including a current transformer functional circuit and an indicator; and A tracing circuit is configured to drive a tracing signal into an inductive clamp for measuring current flowing in a conductor subject to a continuity test performed by a microcontroller.

19. The circuit tracer transmitter of claim 15, wherein the inductive clamp is provided with an inductive unit comprising a circuit configured to induce a data signal sequence in the tracing signal onto the conductor under test.

20. A method of performing a continuity test to locate an electrical wiring fault using a circuit tracer transmitter with an integrated continuity test, comprising: sensing the current on the primary driver side of the transformer by a current sensing circuit; receiving, via the microcontroller, input data indicative of the current; By means of a microcontroller, the input data is compared with a current threshold level; as well as If the current threshold level is reached or exceeded, an alarm is generated by the microcontroller and using an indicator that indicates continuity on the test leads on the secondary driver side of the transformer.

21. The method of claim 20, wherein the transformer comprises a line coupled transformer, and wherein the sensing by the current sensing circuit is performed at an input of an output driver driving the line coupled transformer.

22. The method of claim 20, wherein the transformer comprises a line-coupled transformer, and wherein the sensing by the current sensing circuit is performed at an output of an output driver driving the line-coupled transformer.

23. The method of claim 20, further comprising: If a voltage sensing circuit on the secondary driver side of the transformer detects a live circuit, the continuity test is inhibited by the microcontroller; and Upon detection of a live circuit, a second alarm is generated by the microcontroller.

24. The method of claim 20, further comprising: sending the alert via a microcontroller to a wireless module, the wireless module being configured to communicate via at least one of Bluetooth, Wi-Fi, or a combination thereof; The alert is sent wirelessly to a screen display that is physically separate from the microcontroller.

25. A circuit tracer kit with integrated continuity test for locating electrical wiring faults, the circuit tracer kit comprising: Circuit tracer receiver; and A circuit tracer transmitter separate from the circuit tracer receiver, wherein the circuit tracer transmitter comprises at least: a line-coupled transformer including a primary driver side and a secondary driver side; a current sensing circuit configured to sense current on a primary driver side of a line coupled transformer and input data indicative of the current; a voltage detection circuit on a secondary driver side of the line coupling transformer, wherein the voltage detection circuit is configured to detect whether the circuit tracer transmitter is energized and then inhibit the continuity test; Indicator; an output driver configured to drive a line coupling transformer; and A circuit assembly configured to trigger execution of a continuity test by automatically comparing input data to a current threshold level and, if the continuity test is not inhibited, generating an alarm using an indicator when the current threshold level is met, Wherein the alarm indicates continuity on a test lead on a secondary driver side of the line coupling transformer.

26. A current tracer device according to claim 25 having a current sensing circuit according to any one of claims 3, 4 or 5.

27. A circuit tracer kit with integrated continuity testing for locating electrical wiring faults in a conductor under test, the circuit tracer kit comprising: a sensing device equipped with a sensing unit, the sensing unit comprising a circuit configured to sense a data signal sequence in the tracing signal onto the conductor under test, wherein the sensing unit is further equipped with a circuit configured to measure a current flowing in the conductor; and A circuit tracer receiver equipped with a communication interface is used to receive a data signal sequence in a tracing signal on a conductor and process the sequence.

28. The circuit tracer kit of claim 27, wherein the sensing unit comprises: first electronic means for driving a current which induces a sequence of data signals onto the conductor; and A second electronic device is used to sense the current flowing in the conductor.

29. The circuit tracer kit of claim 27, wherein the first electronic device and the second electronic device operate simultaneously to perform current measurements and simultaneously sense the tracing signal.

30. The circuit tracer kit of claim 27, wherein the first electronic device and the second electronic device operate alternately in the following manner: the second electronic device performs current measurements and then the first electronic device senses a tracing signal based on the current measurements.

31. A circuit tracer kit according to claim 27, wherein the tracing signal from the sensing device to the circuit tracer receiver indicates whether the conductor is energized or de-energized, and wherein the sensing unit is also equipped with a circuit configured to measure the current flowing in the conductor, which is subject to the integrated continuity test.

32. The circuit tracer kit of claim 27, wherein a first pulse width of the tracing signal indicates a first value and a second pulse width of the tracing signal indicates a second value.

33. The circuit tracer kit of claim 27, wherein the tracing signal comprises a frame start pulse, a frame end pulse, and a data message transmitted between the frame start pulse and the frame end pulse.

34. The circuit tracer kit of claim 27, wherein the circuit tracer receiver includes a memory storing a mapping table for processing a sequence of data signals.

35. The circuit tracer kit of claim 27, wherein processing of the data signal sequence by the circuit tracer receiver is performed without requiring handshaking with the sensing device.

36. The circuit tracker kit of claim 27, wherein communication with the circuit tracker receiver is unidirectional with the sensing device.

37. The circuit tracer kit of claim 27, wherein the sensing device does not completely surround the conductor being tested.

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