Cable core checking device, cable core checking method and cable core checking box

Abstract

The invention discloses a cable core checking device, a cable core checking method and a cable core checking box, the cable core checking device is mainly composed of a transmitting device and a receiving device, rapid and accurate checking of a cable core is realized through a wireless communication technology, the working efficiency is improved, and the operation difficulty is reduced; the cable core checking device comprises a transmitting device and a receiving device, the transmitting device and the receiving device are respectively arranged at the head and the tail of a cable core, the transmitting device and the receiving device are respectively provided with a plurality of detection channel interfaces, and the head and the tail of the cable core are respectively connected to the detection channel interfaces of the transmitting device and the receiving device; each of the transmitting device and the receiving device comprises a shell, an antenna is arranged at the upper part of the shell, a touch display screen is arranged on the outer surface of the shell, a detection channel interface, an electricity testing interface and a grounding interface are arranged at the bottom of the touch display screen, and a corresponding LED indicating lamp is arranged above each detection channel interface. And a charging interface and a power switch are arranged at the bottom of the shell.

Description

Technical Field

[0001] The present invention relates to the field of cable alignment, and particularly to a cable core aligner. Background Art

[0002] In the power system, as a key node for power transmission and distribution, the stability and security of a substation are of crucial importance. As an important medium for signal transmission and command control among internal devices in a substation, the accuracy and efficiency of the wiring of control cables directly affect the operation efficiency and security of the entire power system. However, in the current wiring operation of substation control cables, the work of verifying cable cores faces many challenges.

[0003] Traditional methods for verifying cable cores mainly rely on a multimeter. As a multi-functional electric meter, the multimeter has a wide range of applications in the power industry, but in the specific scenario of cable core verification, it exposes many deficiencies.

[0004] First of all, the multimeter needs to pass strict inspection and be qualified before it can be used. To a certain extent, this limits its quantity and scope of use, resulting in the situation that in engineering sites such as substations, it is often impossible for each wiring operator to have a multimeter at hand, greatly reducing the work efficiency.

[0005] Secondly, when using a multimeter, complex settings and operations are required. For some non-professional or inexperienced wiring operators, this undoubtedly increases the operation difficulty and the risk of making mistakes.

[0006] Finally, when using the buzzer file of the multimeter for wire alignment, it is easily interfered by various noises in the working environment, resulting in a reduction in work efficiency. At the same time, long-term use of the buzzer file will also cause a reduction in the battery life of the multimeter. When the workload of secondary cables is large, the battery of the multimeter is insufficient and the work has to stop, which is likely to delay the project schedule.

[0007] In summary, developing a set of cable core aligners is of great significance for solving the problems of low efficiency and inconvenient operation in verifying cable cores before wiring substation control cables. By researching and applying cable core aligners, the work efficiency can be greatly improved, the operation difficulty can be reduced, the anti-interference ability can be enhanced, the battery life can be extended, the construction quality and safety can be improved, and a strong guarantee can be provided for the stable operation of the power system. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to disclose a cable core aligner, a method and its box body in view of the above deficiencies in the prior art. The aligner mainly consists of two parts: a transmitting device and a receiving device, and realizes the rapid and accurate verification of cable cores through wireless communication technology, improving work efficiency and reducing operation difficulty.

[0009] The technical solution adopted by the present invention to solve its technical problems is as follows: a cable core wire checker, comprising a transmitting device and a receiving device. The transmitting device and the receiving device are respectively placed at the head and the tail of the cable core. A plurality of detection channel interfaces are respectively provided on the transmitting device and the receiving device. The head and the tail of the cable core are respectively connected to the detection channel interfaces of the transmitting device and the receiving device.

[0010] Both the transmitting device and the receiving device include a housing. An antenna is provided on the upper part of the housing. A touch display screen is provided on the outer surface of the housing. Detection channel interfaces, voltage detection interfaces, and grounding interfaces are provided at the bottom of the touch display screen. Corresponding LED indicators are provided above each detection channel interface. A charging interface and a power switch are provided at the bottom of the housing.

[0011] A main control circuit board and a rechargeable battery are provided inside the housing. The main control circuit board includes a single-chip microcomputer, an opto-isolation circuit, a voltage detection circuit, a power supply circuit, a charging circuit, a wireless communication module, and an alarm circuit. The voltage detection circuit is connected to the input end of the single-chip microcomputer. The output end of the single-chip microcomputer is connected to the alarm circuit. The touch display screen, the opto-isolation circuit, and the wireless communication module are electrically connected to the single-chip microcomputer. The charging circuit is connected to the rechargeable battery. The rechargeable battery is connected to the power supply circuit. The power supply circuit is used for power supply of this device.

[0012] Further,

[0013] The alarm circuit is connected to a buzzer. A buzzer hole is provided on the outer surface of the housing at the corresponding position of the buzzer. When the single-chip microcomputer detects AC or DC voltage at the voltage detection interface, it controls the alarm circuit to give an audible alarm.

[0014] Further,

[0015] The voltage detection circuit is connected to the voltage detection interface. The voltage detection circuit samples the voltage connected to the voltage detection interface and sends the sampling signal to the single-chip microcomputer.

[0016] Further,

[0017] The touch display screen of the transmitting device displays the corresponding relationship of the detection channel interfaces of the transmitting device, power display, voltage detection display, and communication display.

[0018] Further,

[0019] The touch display screen of the receiving device displays the corresponding relationship of the detection channel interfaces of the receiving device, power display, voltage detection display, and communication display.

[0020] Further,

[0021] The optocoupler isolation circuit is respectively connected to the detection channel interface and the single-chip microcomputer. The single-chip microcomputer receives / sends detection signals to / from the optocoupler isolation circuit, and the detection channel interface receives / sends detection signals to / from the optocoupler isolation circuit.

[0022] Further,

[0023] The wireless communication module is a LoRa wireless communication module.

[0024] Further,

[0025] The touch display screen is a resistive touch serial touch display screen, which is connected to the single-chip microcomputer through a serial port. The single-chip microcomputer uses STM32F103C8T6.

[0026] Further,

[0027] The usage method of the cable core wire aligner comprises the following steps:

[0028] Step 1: Turn on the transmitting device and the receiving device for wireless communication connection;

[0029] Step 2: Connect the grounding interfaces of the transmitting device and the receiving device to the grounding device or the grounding copper bar respectively;

[0030] Step 3: Inspect the electricity of the cable core. Insert the test pen into the test interface (test +) and the test interface (test -) respectively, and check each cable core one by one. After confirming that there is no electricity, connect the head and tail of the cable core to the detection channel interfaces of the transmitting device and the receiving device respectively using the connection clamps;

[0031] Step 4: Click the send button on the touch display screen of the transmitting device, and the receiving device will automatically detect the cable core of the paired channel;

[0032] Step 5: According to the pairing information of the transmitting device and the receiving device, put the same wire number tube on the paired cable cores.

[0033] Further,

[0034] A box body includes a housing and a first groove, a second groove, a third groove and a fourth groove arranged inside the housing; the first groove and the second groove are used to place the transmitting device and the receiving device of the cable core wire aligner as described in claims 1 - 8;

[0035] The third groove is used to place the charger;

[0036] The fourth groove is used to place the connection clamps.

[0037] The present invention has the following advantages compared with the prior art:

[0038] The cable core checker proposed in this solution is an innovative tool designed specifically to address the problems of low efficiency and inconvenient operation in checking cable cores before connecting substation control cables. The checker mainly consists of a transmitting device and a receiving device, and realizes the rapid and accurate checking of cable cores through wireless communication technology;

[0039] It includes a transmitting device and a receiving device, which are respectively placed at the head and tail of the cable core and communicate through wireless signals. The transmitting device sends PWM waves of different frequencies to the detection port, and the receiving device receives the PWM waves of different frequencies through the detection port. Then, the receiving device sends the received PWM wave results to the transmitting device through wireless communication, so as to realize the cable core checking work of the two devices of the checker;

[0040] This device has the following advantages:

[0041] 1. Improve checking efficiency

[0042] Multi-channel detection: Multiple detection channel interfaces are respectively provided on the transmitting device and the receiving device, allowing multiple cable cores to be connected and detected simultaneously. This parallel processing method significantly reduces the time for checking one by one, thus improving the overall work efficiency;

[0043] Wireless communication: Through the wireless communication module, data can be transmitted in real time between the transmitting device and the receiving device without physical connection, further simplifying the operation process and shortening the checking time;

[0044] 2. Operational convenience

[0045] Touch display screen: The touch display screen provides an intuitive operation interface, enabling non-professionals to quickly get started;

[0046] LED indicator: A corresponding LED indicator is provided above each detection channel interface. Through the color or flashing state of the indicator, users can quickly judge the connection status and detection results of the cable core without additional detection tools or steps;

[0047] 3. Safety and reliability

[0048] Voltage detection circuit and alarm circuit: The voltage detection circuit can detect whether the cable core is energized, ensuring that the checking operation is carried out under safe conditions. Once the energized state is detected, the alarm circuit will be immediately triggered to remind the operator to pay attention to safety;

[0049] Opto-isolation circuit: Through the opto-isolation circuit, electrical isolation is achieved, protecting the main control circuit board and other circuits from external electrical interference and damage, and improving the reliability and stability of the equipment;

[0050] 4. Practicality

[0051] Rechargeable battery: The device is equipped with a rechargeable battery, which is charged through the charging interface. There is no need to replace the battery, reducing the usage cost. At the same time, the battery has a long battery life and can meet the needs of long-term work;

[0052] Wide applicability: This cable core checker is not only applicable to the pre-wiring verification of substation control cables, but can also be applied to other occasions that require efficient and accurate verification of cable cores, such as data centers, industrial plants, etc.;

[0053] In summary, the cable core checker proposed in this solution is of great significance for solving the problems of low efficiency and inconvenient operation in verifying cable cores before connecting substation control cables. It can not only improve work efficiency, reduce operation difficulty, but also enhance safety, reliability and practicality, providing a strong guarantee for the stable operation of the power system. Brief Description of the Drawings

[0054] Figure 1 It is a three-dimensional structure schematic diagram of a specific embodiment of the present invention;

[0055] Figure 2 is Figure 1 a three-dimensional structure schematic diagram from another angle;

[0056] Figure 3 It is a working principle block diagram of the present invention;

[0057] Figure 4 It is a circuit principle block diagram of the present invention;

[0058] Figure 5 It is a PWM transmission / reception circuit principle block diagram;

[0059] Figure 6 It is a voltage sampling circuit principle block diagram;

[0060] Figure 7 It is a wireless communication principle block diagram;

[0061] Figure 8 is a physical object Figure 1 ;

[0062] Figure 9 is a physical object Figure 2 .

[0063] Description of the Reference Numerals in the Drawings:

[0064] 1 - housing, 2 - antenna, 3 - touch display screen, 4 - detection channel interface, 5 - LED indicator light, 6 - grounding interface, 7 - voltage detection interface, 8 - charging interface, 9 - power switch, 10 - buzzer hole. Detailed Embodiment

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0066] As Figures 1 to 9 shown, it shows the specific implementation manner of the present invention;

[0067] As Figures 1 to 9 shown, the cable core wire checker disclosed by the present invention includes a transmitting device and a receiving device. The transmitting device and the receiving device are respectively placed at the head and tail of the cable core. A plurality of detection channel interfaces 4 are respectively provided on the transmitting device and the receiving device. The head and tail of the cable core are respectively connected to the detection channel interfaces 4 of the transmitting device and the receiving device;

[0068] Both the transmitting device and the receiving device include a housing 1. An antenna 2 is provided on the upper part of the housing 1. A touch display screen 3 is provided on the outer surface of the housing 1. Detection channel interfaces 4, a power inspection interface 7, and a grounding interface 6 are provided at the bottom of the touch display screen 3. Corresponding LED indicators 5 are provided above each detection channel interface 4. A charging interface 8 and a power switch 9 are provided at the bottom of the housing 1;

[0069] A main control circuit board and a rechargeable battery are provided inside the housing 1. The main control circuit board includes a single-chip microcomputer, an opto-isolation circuit, a power inspection circuit, a power supply circuit, a charging circuit, a wireless communication module, and an alarm circuit. The power inspection circuit is connected to the input end of the single-chip microcomputer. The output end of the single-chip microcomputer is connected to the alarm circuit. The touch display screen 3, the opto-isolation circuit, and the wireless communication module are electrically connected to the single-chip microcomputer. The charging circuit is connected to the rechargeable battery. The rechargeable battery is connected to the power supply circuit. The power supply circuit is used for power supply of this device.

[0070] The cable core wire checker is divided into a transmitting device and a receiving device. Since the functions of these two devices are not very different, the two devices can be designed on the same hardware, or it can be said that the two devices are the same in hardware.

[0071] The working principle of the present invention is as follows: The cable core wire checker is divided into a transmitting device and a receiving device. The transmitting device and the receiving device are respectively provided with a plurality of detection channels for connecting with the cable core. The transmitting device sends PWM waves of different frequencies to the detection ports. The receiving device receives the PWM waves of different frequencies through the detection ports, and then the receiving device sends the received PWM wave results to the transmitting device through wireless communication, so as to realize the cable core checking work of the two devices of the wire checker. The wireless communication between the transmitting device and the receiving device needs to adopt a standard and mature communication protocol to ensure stable and error-free signal transmission.

[0072] 1. The function of the core wire of the cable: It is realized by sending / receiving PWM waves of different frequencies, wireless communication, etc. through the device.

[0073] 2. Wireless communication function: It is used for the transmission of the core wire results between the transmitting device and the receiving device.

[0074] 3. Voltage measurement and detection function: The device is provided with a voltage measurement and detection interface for measuring whether there is voltage between the cores of the cable. It can measure AC or DC voltage, and a sound alarm function is required.

[0075] 4. The device is powered by a rechargeable lithium battery and is equipped with a charging interface. In this embodiment, the commonly used Type-C interface is selected for the charging interface.

[0076] 5. LCD display function: It is used to display the core wire results of the cable core wire detector, display the remaining power of the lithium battery, display the voltage detection results, etc. One such display is provided for each of the transmitting device and the receiving device.

[0077] Preferably, as Figure 1 shown,

[0078] The alarm circuit is connected to a buzzer, and a buzzer hole 10 is provided on the outer surface of the housing 1 at the corresponding position of the buzzer. When the single-chip microcomputer detects AC or DC voltage at the power inspection interface 7, it controls the alarm circuit to emit a sound alarm.

[0079] During the process of inspecting the voltage of the cable core wire, the single-chip microcomputer is used to detect whether there is AC or DC voltage at the power inspection interface and control the alarm circuit to emit a sound alarm. This design has significant beneficial effects.

[0080] 1. Improve safety

[0081] Immediate warning: When the cable core wire is charged, the alarm circuit can quickly respond and emit a sound alarm, reminding the operating personnel to pay attention and avoiding direct contact with the charged cable, thus effectively preventing the occurrence of electric shock accidents.

[0082] Prevent misoperation: In a complex cable environment, it is sometimes difficult for the operating personnel to accurately judge which cables are charged. The immediate feedback of the alarm circuit can help the operating personnel quickly identify the charged cables and avoid safety accidents caused by misoperation.

[0083] 2. Improve work efficiency

[0084] Quick positioning: The sound alarm can quickly attract the attention of the operating personnel, enabling them to quickly locate the charged cable core wire, thereby accelerating the speed of voltage inspection and troubleshooting.

[0085] 3. Enhance system reliability

[0086] Strong adaptability: This alarm circuit can detect AC and DC voltages, is applicable to different types of cables and different working environments, and has strong versatility and adaptability.

[0087] In summary, the alarm circuit plays a crucial role in the process of verifying the electrification of cable cores. It can not only improve safety and work efficiency, but also enhance the reliability of the system and its ease of maintenance and expansion. Therefore, in applications such as cable electrification verification, the design and implementation of the alarm circuit are of great significance.

[0088] Preferably, as Figures 1 to 2 shown,

[0089] The electrification verification circuit is connected to the electrification verification interface 7. The electrification verification circuit samples the voltage accessed by the electrification verification interface 7 and sends the sampling signal to the single-chip microcomputer.

[0090] The electrification verification circuit is connected to the electrification verification interface 7 to achieve accurate detection of the energized state of the cable core.

[0091] The main function of the electrification verification circuit is to sample the voltage accessed by the electrification verification interface 7. When the cable core is inserted into the electrification verification interface 7, if the cable is energized, then the electrification verification interface 7 will capture the corresponding voltage signal. The electrification verification circuit will then sample this voltage signal and convert it into an electrical signal for further processing.

[0092] The principle of the voltage sampling circuit is as Figure 6 shown. The electrification verification circuit is connected to the electrification verification interface and the single-chip microcomputer. Its main function is to detect the voltage of the cable. This circuit can detect whether the voltage accessed by the electrification verification interface is AC or DC. Therefore, after the external voltage is input, it needs to be rectified by a rectifier bridge first, so that both DC and AC voltages can be detected. After rectification, it is filtered by a capacitor to make the voltage smooth. Finally, it enters the single-chip microcomputer for AD sampling after voltage division by a resistor. Moreover, it can sample the voltage accessed by the electrification verification interface, send the sampling signal to the single-chip microcomputer, and the single-chip microcomputer calculates the true voltage value through a formula.

[0093] In summary, the design of the electrification verification circuit fully considers safety and reliability. The electrification verification circuit samples the voltage signal accessed by the electrification verification interface 7 and sends it to the single-chip microcomputer for processing and analysis, achieving accurate detection of the energized state of the cable core. This design not only improves the accuracy and reliability of electrification verification, but also enhances the safety and usability of the system. In applications such as cable electrification verification, the design and implementation of the electrification verification circuit have broad application prospects and important practical significance.

[0094] Preferably, as Figure 8 shown,

[0095] The touch display screen of the transmitting device displays the correspondence of the detection channel interfaces of the transmitting device, power display, live wire detection display, and communication display.

[0096] The touch display screen of the receiving device displays the correspondence of the detection channel interfaces of the receiving device, power display, live wire detection display, and communication display.

[0097] In this embodiment, the detection channel interfaces are set to 5. The touch display screen controls the send detection signal button. When the corresponding channel send button is pressed, the corresponding channel (channel 1 to channel 5) outputs a detection signal, and the LED lights on the corresponding detection channel will also light up. After clicking the send button, the button will change to stop, and clicking again will stop sending the detection signal.

[0098] Detection result display shows the correspondence of the detection channel interfaces of the transmitting device / receiving device;

[0099] Live wire detection display performs AD sampling on the electrical signal sent by the live wire detection circuit to determine whether AC / DC power is detected at the live wire detection interface. If DC power is detected, it displays "DC***V" or "DC-***V", and if it is AC power, it displays "AC***V". The single-chip microcomputer controls the display of the voltage at the live wire detection interface and the correspondence of the cable cores. First, when the single-chip microcomputer detects the AC / DC voltage at the live wire detection interface, it forwards it to the touch display screen for display. Second, the single-chip microcomputer controls the touch display screen to display the correspondence of each detection channel between this device and another device to inform the operator of the correspondence of the cores in the cable.

[0100] Communication display: When the transmitting device and the receiving device are in communication, the icon blinks; when there is no communication, the icon is not displayed;

[0101] Power display: 0% - 100%. The single-chip microcomputer will detect the battery power of the device in real time and send it to the touch display screen for display to prompt the operator to charge in time when the power is low;

[0102] For the interfaces of device detection channels 1 to 5, during operation, insert the connecting wire clips of the corresponding plugs into these 5 interfaces, and then use the alligator clips at the other end of the connecting wire to clamp the cable. When the corresponding interface on the transmitting / receiving device sends / receives a detection signal, the indicator light on the corresponding interface lights up, otherwise it goes out, which is used to indicate whether there is a detection signal sent / received at this interface.

[0103] Device grounding interface: When using the device for detection, this interface needs to be grounded with a connecting wire, otherwise the detection signal of the transmitting device cannot be received by the receiving device.

[0104] Preferably,

[0105] The optocoupler isolation circuit is respectively connected to the detection channel interface 4 and the single-chip microcomputer. The single-chip microcomputer receives / sends detection signals to / from the optocoupler isolation circuit, and the detection channel interface 4 receives / sends detection signals to / from the optocoupler isolation circuit.

[0106] The main function of the optocoupler isolation circuit is to isolate the cable from the single-chip microcomputer and protect the single-chip microcomputer. If the signal output by the single-chip microcomputer is directly connected to the cable, assuming there is high voltage in the cable, the single-chip microcomputer and its entire circuit will be burned out, posing a certain safety hazard. The signal output by the single-chip microcomputer first passes through the optocoupler isolation circuit, and then the optocoupler isolation circuit controls the output to the cable. The receiving end works on the same principle. Therefore, the optocoupler isolation circuit plays a role of isolation and protection here.

[0107] Preferably, as Figure 7 shown,

[0108] the wireless communication module is a LoRa wireless communication module.

[0109] For the selection of the wireless communication module, existing wireless communications include WIFI, Bluetooth, 4G, LoRa, etc. WIFI communication is a very popular wireless technology at present and is well-known for its high transmission rate and convenient access point settings. However, the communication distance of WIFI is limited, and the maximum communication distance of the cable core detector in this project is several hundred meters. Therefore, WIFI communication is not suitable for use in this project; Bluetooth communication is a short-distance wireless communication technology commonly used to connect mobile phones, earphones, and laptop computers. Since its communication distance is short, Bluetooth communication is also not suitable for use in this project; 4G communication, as part of mobile communication technology, provides high-speed data transmission services, enabling users to achieve wireless Internet access and data exchange while moving. However, its usage scenario is not very suitable for this project, and the cost is too high; LoRa is a long-range wireless transmission technology known for its low power consumption and long-distance communication capabilities, suitable for Internet of Things applications and long-distance communication devices. Considering comprehensively, LoRa communication is more suitable for this project, so the LoRa communication module is finally selected.

[0110] Preferably,

[0111] the touch display screen 3 is a resistive touch serial touch display screen, connected to the single-chip microcomputer through a serial port, and the single-chip microcomputer uses STM32F103C8T6.

[0112] Touch display screen selection: The LCD display screen interface of this project needs to have display and touch operation functions. Considering aspects such as display effect, difficulty of implementation control, and cost, a resistive touch serial touch display screen is finally selected. It uses a serial port for control and can be directly connected to a single-chip microcomputer to achieve control and display. The control is simple, the display effect is good, and the price is cheap. In this embodiment, a 2.8-inch resistive touch screen is selected for the LCD display screen, and the single-chip microcomputer serial port is used to control the display and control;

[0113] Single-chip microcomputer selection: The selected LoRa wireless communication module and resistive touch serial touch display screen above both use serial port control. The detection channel of the device needs to send multiple PWM waves with different frequencies, but the requirements for this PWM wave are not high, and the IO port of the single-chip microcomputer can be used to simulate the output. Considering the above, the single-chip microcomputer used in this project can select the commonly used STM32F103C8T6 single-chip microcomputer on the market. This single-chip microcomputer has a low price and its performance fully meets the requirements of this project.

[0114] The usage method of the cable core wire aligner is as follows:

[0115] Step 1: Turn on the transmitting device and the receiving device for wireless communication connection;

[0116] Step 2: Connect the grounding interfaces of the transmitting device and the receiving device to the grounding device or the grounding copper bar respectively;

[0117] Step 3: Check the electricity of the cable core. Insert the test pen of the test interface for checking electricity + and the test interface for checking electricity - respectively, and check each cable core one by one. After confirming that there is no electricity, connect the head and tail of the cable core to the detection channel interfaces of the transmitting device and the receiving device respectively using connection clamps;

[0118] Step 4: Click the send button on the touch display screen of the transmitting device, and the receiving device will automatically detect the cable core of the paired channel;

[0119] Step 5: According to the pairing information of the transmitting device and the receiving device, put the same wire number tube on the paired cable cores.

[0120] After this device is manufactured, the following aspects need to be tested:

[0121] 1. Sending and receiving of detection signals

[0122] The detection device of the cable core wire aligner transmits 5 PWM waves with different frequencies from different ports, and then connects the detection channels of the transmitting device and the receiving device through a test wire. Observe whether the PWM wave is successfully sent through an oscilloscope, and the receiving device can observe whether the PWM is successfully received through an indicator light or a display screen or simulation debugging.

[0123] 2. Voltage detection test

[0124] The voltage detection interface of the cable core wire aligner can measure both direct current and alternating current. When testing, it is necessary to calibrate the sampling first, so that the 0-3.3V sampled by the single-chip microcomputer corresponds to the 0-230V of the external input voltage.

[0125] For voltage calibration, first perform a linear fitting on the sampled voltage. First, use an adjustable power supply to input 0-250V of direct current and alternating current into the voltage detection interface respectively. When inputting the voltage, it can be increased in steps of 10V. The smaller the increment, the more accurate the voltage calculated by the sampling. During debugging, record the input AC / DC voltage values while using the upper computer simulation debugging to observe and record the AD sampling results of the single-chip microcomputer. Finally, obtain the linear relationship between the input voltage of DC / AC and the sampled voltage of the single-chip microcomputer. Through this linear relationship, the magnitude of the input voltage can be measured during detection.

[0126] After the voltage detection port measures the voltage, it is necessary to display and alarm the operator. On the one hand, the single-chip microcomputer controls the buzzer for sound alarm. On the other hand, the voltage type and voltage magnitude are sent to the display screen for display.

[0127] After the test is completed, connect the test leads of the multimeter to the voltage detection port, and then measure the magnitude of each voltage level output by the adjustable power supply. Observe whether the voltage type and voltage magnitude displayed on the display screen are accurate, whether they meet the requirements, and whether the buzzer alarms and other information.

[0128] 3. Wireless communication test

[0129] The wireless communication test of the cable core wire aligner transmitter and receiver can be divided into: wireless communication function test, wireless communication data transmission test, and wireless communication transmission distance test.

[0130] For the wireless communication of the cable core wire aligner transmitter and receiver, first, the function of wireless communication needs to be realized. First, the transmitter and receiver respectively use the single-chip microcomputer to control and send the set bytes, and then through the upper computer simulation debugging, observe whether the single-chip microcomputer serial port receive buffer of the two devices receives the byte respectively. If the reception is successful, it means that the wireless communication function between the transmitter and the receiver is realized.

[0131] The wireless communication data transmission test of the cable core wire aligner transmitter and receiver is that the receiver wirelessly sends the PWM result received by the receiver, that is, the wire alignment result, to the transmitter. This requires sending the result to the transmitter so that both devices can display the corresponding relationship of the cable cores. The wireless communication data transmission needs to process the data frame according to the communication protocol to ensure that the data can be accurately received. The receiver processes and processes the wire alignment result data, converts it into a data frame, and then sends the data frame through the serial port that controls the LoRa wireless communication module. The transmitter continuously receives and parses the data frame. During the test, the upper computer simulation software can be used to observe whether the sent and received data frames are consistent to determine whether the wireless communication data transmission is successful.

[0132] The wireless communication transmission distance test of the cable core wire aligner transmitter and receiver is to observe whether the wireless communication distance between the two devices meets the requirements of this project (≥200 meters). Before the test, it is designed that if the communication between the two devices is successful, the wireless communication icon will flash on the display screen, and if the communication fails, the icon will not be displayed. During the test, place the two devices at two positions 200 meters or even farther apart, and observe whether the wireless communication icon on the display screen flashes. If it flashes, it meets the requirements; if the icon cannot be observed, it does not meet the project requirements.

[0133] 4. Standby battery life test

[0134] The cable core wire aligner transmitter and receiver are powered by rechargeable lithium batteries, and the continuous standby time of the battery needs to be ≥8 hours. Before the test, fully charge the battery, then turn on the two devices to make them run normally, record the startup time, and finally observe how long the two devices can continuously run.

[0135] Preferably, as Figure 9 shown,

[0136] A box body includes a housing and a first groove, a second groove, a third groove, and a fourth groove provided in the housing; the first groove and the second groove are used to place the transmitter and receiver of the cable core wire aligner as described in claims 1-8;

[0137] The third groove is used to place the charger;

[0138] The fourth groove is used to place the connection clip.

[0139] In order to improve the portability of the cable core wire aligner, in this embodiment, a box body is designed. Through modular design, corresponding placement grooves are specifically set for this device to meet the storage and carrying needs of users for the cable core wire aligner and its related accessories.

[0140] The box can further adopt a quick-locking design to ensure that the box is tightly sealed when closed, preventing the items inside from shaking or getting damp. At the same time, the lock should be easy to operate and can be quickly opened even in an emergency.

[0141] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention. These changes involve related technologies well-known to those skilled in the art, and all of these fall within the protection scope of the patent of the present invention.

[0142] Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. Cable core corer, characterized in that: It comprises a transmitting device and a receiving device, the transmitting device and the receiving device are respectively placed at the head and tail of the cable core, the transmitting device and the receiving device are respectively provided with a plurality of detection channel interfaces (4), and the head and tail of the cable core are respectively connected to the detection channel interfaces (4) of the transmitting device and the receiving device; The transmitting device and the receiving device both comprise a housing (1), an antenna (2) being provided on the upper portion of the housing (1), a touch screen (3) being provided on the outer surface of the housing (1), a detection channel interface (4), an electrical test interface (7), and a grounding interface (6) being provided at the bottom of the touch screen (3), wherein a corresponding LED indicator (5) is provided above each detection channel interface (4), and a charging interface (8) and a power switch (9) are provided at the bottom of the housing (1); The housing (1) is provided with a main control circuit board and a rechargeable battery. The main control circuit board includes a single-chip microcomputer, an optical coupling isolation circuit, an electric detection circuit, a power supply circuit, a charging circuit, a wireless communication module and an alarm circuit. The electric detection circuit is connected to the input end of the single-chip microcomputer, and the output end of the single-chip microcomputer is connected to the alarm circuit. The touch display screen (3), the optical coupling isolation circuit, and the wireless communication module are electrically connected to the single-chip microcomputer. The charging circuit is connected to the rechargeable battery, and the rechargeable battery is connected to the power supply circuit. The power supply circuit is used to supply power to the device.

2. The cable core core device according to claim 1, characterized in that: The alarm circuit is connected to a buzzer, and a buzzer hole (10) is provided on the outer surface of the housing (1) at a position corresponding to the buzzer. When the single-chip microcomputer detects that there is an AC or DC voltage at the electrical test interface (7), the alarm circuit is controlled to emit an audible alarm.

3. The cable core wire device according to claim 2, characterized in that: The electric power testing circuit is connected to the electric power testing interface (7), the electric power testing circuit samples the voltage connected to the electric power testing interface (7), and the electric power testing circuit sends the sampling signal to the single chip microcomputer.

4. The cable core wire device according to claim 3, characterized in that: The touch screen display of the transmitting device includes the corresponding relationship of the detection channel interface of the transmitting device, power display, power test display, and communication display.

5. The cable core core device according to claim 3, characterized in that: The receiving device touch screen display includes the corresponding relationship of the detection channel interface of the receiving device, power display, power test display, and communication display.

6. The cable core wire device according to claim 4 or 5, characterized in that: The optical coupler isolation circuit is connected to the detection channel interface (4) and the single-chip microcomputer respectively; the single-chip microcomputer receives / sends a detection signal to the optical coupler isolation circuit; and the detection channel interface (4) receives / sends a detection signal to the optical coupler isolation circuit.

7. The cable core core device according to claim 6, characterized in that: The wireless communication module is a LoRa wireless communication module.

8. The cable core corer according to claim 7, characterized in that: The touch display screen (3) is a resistive touch serial port touch display screen, which is connected to a single chip microcomputer via a serial port, and the single chip microcomputer adopts STM32F103C8T6.

9. The method for using the cable core corer is characterized by: Using the cable core corer as described in any one of claims 1 to 8, perform the following steps: Step 1: Turn on the transmitter and receiver to establish wireless communication connection; Step 2: Connect the grounding interfaces of the transmitting device and the receiving device to the grounding device or the grounding copper busbar respectively; Step 3: Test the power of the cable cores. Insert the test leads into the power test interface (power test +) and the power test interface (power test -) respectively. Test the power of each cable core one by one. After confirming that there is no power, connect the head and tail of the cable core to the detection channel interface of the transmitter and the receiver respectively using the connecting wire clamps. Step 4: Click the send button on the touch screen of the transmitter, and the receiver will automatically detect the cable core of the paired channel; Step 5: According to the pairing information of the transmitter and the receiver, the paired cable cores are covered with the same wire tube.

10. A box, characterized in that: It includes a shell and a first groove, a second groove, a third groove and a fourth groove arranged in the shell; the first groove and the second groove are used to place the transmitting device and the receiving device of the cable core wire device as described in rights 1-8; The third groove is used to place the charger; The fourth groove is used for placing the connecting wire clamp.

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