A cable identification instrument with remote communication and control function

Abstract

The application discloses a cable identifier with remote communication and control functions, comprising a transmitter for transmitting pulse signals, a first 4G communication module arranged on the transmitter, a receiver for receiving the pulse signals and converting the pulse signals, and the receiver comprising a signal acquisition circuit, an LC filter circuit, an operational amplifier circuit, a gain control circuit, a digital filter, a DSP microprocessor and a second 4G communication module connected in sequence, and the signal acquisition circuit being used for receiving the pulse signals. The scheme adopts the 4G communication module to realize parameter communication and remote control, has high integration, reliable performance, small size and long endurance time.

Description

Technical Field

[0001] This application relates to the field of cable identification equipment technology, and in particular to a cable identification device with remote communication and control functions. Background Technology

[0002] Cable identifiers are widely used in the power and communication fields, requiring instruments that are stable, reliable, efficient, and compact. However, traditional cable identifiers lack real-time communication between the transmitter and receiver, resulting in low intelligence, low testing efficiency, and susceptibility to misjudgments. The complex on-site environment places high demands on the number and skills of testing personnel using traditional instruments. During testing, changes in cable condition and related environmental factors are difficult for personnel to detect immediately, easily leading to misjudgments of test results. Furthermore, adjustments to the transmitter require manual adjustment by personnel running back and forth, which is cumbersome and inefficient. Utility Model Content

[0003] An embodiment of this application provides a cable identifier with remote communication and control functions.

[0004] To achieve the above objectives, embodiments of this application provide a cable identifier with remote communication and control functions, comprising:

[0005] A transmitter used to transmit pulse signals; the transmitter is equipped with a first 4G communication module.

[0006] A receiver is used to receive pulse signals and convert them.

[0007] The receiver includes, in sequence: a signal acquisition circuit, an LC filter circuit, an operational amplifier circuit, a gain control circuit, a digital filter, a DSP microprocessor, and a second 4G communication module; the signal acquisition circuit is used to receive pulse signals.

[0008] In one embodiment, the receiver also includes a display connected to a DSP microprocessor.

[0009] In one embodiment, the display is a touch display.

[0010] In one embodiment, the digital filter employs a peripheral of a DSP microprocessor, and the digital filter's AD sampling mode is configured as a low-pass filter.

[0011] In one embodiment, the gain control circuit employs a nine-level adjustable control circuit based on a digital potentiometer X9C104, which is controlled and adjusted by instructions from the display.

[0012] In one embodiment, both the first 4G communication module and the second 4G communication module include a SIM card interface.

[0013] In one embodiment, both the first 4G communication module and the second 4G communication module are connected to a current-limiting resistor and an LED.

[0014] This application has the following advantages over the prior art:

[0015] The cable identifier with remote communication and control functions provided in this application uses a 4G communication module for parameter communication and remote control. It has high integration, reliable performance, small size, and long battery life, and can be widely used in various power and communication cable identification scenarios.

[0016] The cable identifier with remote communication and control functions provided in this application embodiment enables real-time communication between the transmitter and receiver in an environment covered by a 4G network. The receiver can promptly grasp the transmitter's status and operating parameters, and utilize these real-time parameters to implement derivative functions such as "automatic gain control" and "historical data display." Simultaneously, it can send corresponding commands to the transmitter at any time to switch the transmitter's output state and verify test results, thereby improving testing efficiency and accuracy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the cable identification device with remote communication and control functions according to an embodiment of this application.

[0019] Figure 2 This is a block diagram of the peripheral structure of the 4G communication module in the cable identifier with remote communication and control functions according to an embodiment of this application;

[0020] Figure 3 This diagram illustrates the information displayed on the screen and the function buttons of the cable identifier with remote communication and control functions in this embodiment of the application. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0025] Reference Figure 1 Embodiments of this application provide a cable identifier with remote communication and control functions, comprising:

[0026] Transmitter 1 is used to transmit pulse signals; a first 4G communication module 11 is provided on transmitter 1.

[0027] Receiver 2 is used to receive pulse signals and convert the pulse signals;

[0028] The receiver 2 includes, in sequence: a signal acquisition circuit 21, an LC filter circuit 22, an operational amplifier circuit 23, a gain control circuit 24, a digital filter 25, a DSP microprocessor 26, and a second 4G communication module 27; the signal acquisition circuit 21 is used to receive pulse signals.

[0029] Specifically, transmitter 1 is connected to the target cable via a mating phase wire, and a clamp is fitted onto the target cable. Transmitter 1 applies a pulse signal to the target cable, and receiver 2 receives the pulse signal through the principle of electromagnetic conversion of the clamp.

[0030] The signal acquisition circuit 21 converts the weak current signal induced by the clamp from the alternating magnetic field around the target cable into a low-impedance voltage signal. The signal acquisition circuit 21 can also suppress common-mode noise and prevent signal spikes.

[0031] The signal converted by the signal acquisition circuit 21 is filtered by the LC filter circuit 22 to remove high-frequency signals, and then connected to the operational amplifier circuit 23 to rationally adjust the signal amplitude. It is then connected to the gain control circuit 24, which provides a control port for hardware and software gain adjustment. The signal is then digitally filtered by the digital filter 25, and finally processed by the DSP microprocessor 26.

[0032] The DSP microprocessor 26 can be a DSP28335 microprocessor. The digital filter 25 uses the peripherals of the DSP microprocessor 26. The AD sampling mode of the digital filter 25 is configured as a low-pass filter with a sampling rate of 20ms and a cutoff frequency of 20Hz.

[0033] The first 4G communication module 11 and the second 4G communication module 27 communicate synchronously to achieve real-time data transmission and command control. Data transmission and command control include the transmitter 1 periodically sending information such as its "output channel," "battery level," "loop impedance," and "output current" to the receiver 2 via the first 4G communication module 11. The receiver 2 updates the display in real time after successfully receiving the information. The receiver 2 can also send commands to the transmitter 1 via the second 4G communication module 27, and the transmitter 1 will adjust its output status in real time upon successfully receiving the command.

[0034] In one embodiment, both the first 4G communication module 11 and the second 4G communication module 27 include a SIM card interface. Both the first 4G communication module 11 and the second 4G communication module 27 are connected to a current-limiting resistor and an LED.

[0035] The first 4G communication module 11 and the second 4G communication module 27 have the same structure, and are collectively referred to as 4G communication modules in this embodiment. The 4G communication modules support a USIM card hardware interface, use the USB 2.0 protocol, and comply with DMA, WC-GSM, TD-SCDMA, and other technical specifications. Figure 2The diagram shows the peripheral structure of the 4G communication module. The selected 4G communication module is model 4G-GLD-7S4832-V7. Transmitter 1 and receiver 2 each have one 4G communication module (11) and one 4G communication module (27), used in pairs to achieve remote wireless communication. The 4G communication module can be powered by either DC 5-16V or DC 3.8V. External I / O ports are connected to current-limiting resistors and LEDs to indicate the communication status of the 4G communication modules. Before installation, the USB 2.0 port is connected to a PC for parameter configuration of the 4G communication module. After configuration, the USB 2.0 port of receiver 2's second 4G communication module 27 is connected to the data port of the DSP microprocessor 26 to store "historical data" and "reference data" after power failure. The USB 2.0 port of transmitter 1's first 4G communication module 11 is left floating and requires no processing. The antenna pin is connected to a 2.5GHz patch antenna. Both transmitter 1 and receiver 2 require SIM cards to be inserted into their SIM interfaces for data communication. The UART interfaces connect to the processors of transmitter 1 and receiver 2 respectively, facilitating parameter and instruction communication.

[0036] In one embodiment, the receiver 2 further includes a display 28 connected to the DSP microprocessor 26. Information processed by the DSP is output to the display 28 via a serial port, and the display 28 displays the specific information of the signal. The display 28 can be a touchscreen display, or more specifically, a touchscreen liquid crystal display. The gain control circuit 24 employs a nine-level adjustable control circuit based on a digital potentiometer X9C104, and is adjusted by commands from the display 28.

[0037] The monitor 28 uses model DN018FM36N, with a digital control virtual kernel and a resolution of 480×272. For example... Figure 3 The diagram shows the information displayed on the central display 28 and its function buttons. ① Displays the transmitter's current output channel, battery level, loop impedance, and output current. ② Displays the transmitter's 4G signal. ③ Displays the receiver's own 4G network connection status. ④ Displays its own battery level. ⑤ is the gain adjustment and display area. ⑥ is the pulse signal direction display area. ⑦ is the period timing loop. ⑧ is the manual / automatic gain switch button. ⑨ are the transmitter output status and channel control buttons. ⑩ is the reference function button. These are the amplitude display areas for reference, measured, and historical signals, respectively.

[0038] It adopts a high-resolution touch LCD screen, which displays complete parameter information, making test results more intuitive and efficient. The touch operation is simple and efficient, greatly reducing the difficulty of use for users.

[0039] The cable identifier with remote communication and control functions provided in this application uses a 4G communication module for parameter communication and remote control. It has high integration, reliable performance, small size, and long battery life, and can be widely used in various power and communication cable identification scenarios.

[0040] The cable identifier with remote communication and control functions provided in this application embodiment enables real-time communication between the transmitter and receiver in an environment covered by a 4G network. The receiver can promptly grasp the transmitter's status and operating parameters, and utilize these real-time parameters to implement derivative functions such as "automatic gain control" and "historical data display." Simultaneously, it can send corresponding commands to the transmitter at any time to switch the transmitter's output state and verify test results, thereby improving testing efficiency and accuracy.

[0041] The transmitter supports dual A / B outputs, with the output channel selected by the transmitter during testing. It supports multi-cable identification in special circumstances, improving the instrument's versatility in challenging environments.

[0042] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cable identifier with remote communication and control functions, characterized in that, include: Transmitter (1), used to transmit pulse signals; The transmitter (1) is equipped with a first 4G communication module (11); Receiver (2) is used to receive the pulse signal and convert the pulse signal; The receiver (2) includes, in sequence: a signal acquisition circuit (21), an LC filter circuit (22), an operational amplifier circuit (23), a gain control circuit (24), a digital filter (25), a DSP microprocessor (26), and a second 4G communication module (27); the signal acquisition circuit (21) is used to receive the pulse signal.

2. The cable identifier with remote communication and control functions according to claim 1, characterized in that, The receiver (2) also includes a display (28) connected to the DSP microprocessor (26).

3. The cable identifier with remote communication and control functions according to claim 2, characterized in that, The display (28) is a touch display.

4. The cable identifier with remote communication and control functions according to claim 2, characterized in that, The digital filter (25) uses the peripheral of the DSP microprocessor (26), and the AD sampling mode of the digital filter (25) is configured as low-pass filtering.

5. The cable identifier with remote communication and control functions according to claim 2, characterized in that, The gain control circuit (24) adopts a nine-level adjustable control circuit based on the digital potentiometer X9C104, which is controlled and adjusted by the instructions of the display (28).

6. The cable identifier with remote communication and control functions according to claim 1, characterized in that, Both the first 4G communication module (11) and the second 4G communication module (27) include a SIM card interface.

7. The cable identifier with remote communication and control functions according to claim 1, characterized in that, Both the first 4G communication module (11) and the second 4G communication module (27) are connected to a current-limiting resistor and an LED.

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