ESD emergency stop loop diagnosis system and device based on line signal monitoring

Abstract

The invention relates to the technical field of numerical control circuits, and discloses an ESD emergency stop loop diagnosis system and device based on line signal monitoring, and the system comprises a power module, a single-chip microcomputer circuit, a state display module, a signal output unit, and an emergency stop button circuit. The scram button circuit comprises an ESD scram button, and diagnosis resistors which are respectively connected in series and in parallel with a normally open contact of the ESD scram button and are used for diagnosing the resistance value of the module. The single-chip microcomputer circuit is configured to detect the voltage of the ESD loop and diagnose the loop state of the ESD loop. The state display module is configured to be connected between the single-chip microcomputer circuit and the signal output unit and comprises a plurality of relay circuits corresponding to loop states. The scram button circuit is connected with the single-chip microcomputer circuit. The device corresponds to the system. By adopting the ESD button and the ESD emergency stop system, effective interconnection between the ESD button and the ESD emergency stop system can be ensured, and effective control of emergency stop can be reliably realized when necessary.

Description

Technical Field

[0001] The present application relates to the technical field of numerical control circuits, and in particular to an ESD emergency stop circuit diagnosis system and device based on line signal monitoring. Background Art

[0002] Under normal circumstances, the ESD emergency stop system is static and does not require human intervention. As a safety protection system, it overrides the production process control and monitors the safety of the device in real time. Only when an emergency occurs in the production device, the ESD trigger device (emergency stop button) directly sends a protection interlock signal to protect the on-site equipment and avoid the spread of danger and huge losses. ESD trigger devices (emergency stop buttons) are divided into two types: normally open and normally closed. From the perspective of its control circuit, the most basic function of the emergency stop button is to stop the machine in an emergency to avoid mechanical or personal accidents. Due to the long-term operation of the machine and the infrequent triggering of the emergency stop device, the circuit, especially the emergency stop circuit, may cause a fault and open circuit due to external factors (insect bites / corrosion / construction) without anyone noticing, causing the ESD button to fail to trigger or a fault short circuit, causing the ESD system to trigger by mistake. Summary of the invention

[0003] The purpose of this application is to provide an ESD emergency stop circuit diagnosis system and device based on line signal monitoring to solve the technical problems raised in the above background.

[0004] To achieve the above objectives, this application discloses the following technical solutions:

[0005] In a first aspect, the present application provides an ESD emergency stop circuit diagnostic system based on line signal monitoring, including a power module, a single-chip circuit, a status display module, a signal output unit, and an emergency stop button circuit;

[0006] The emergency stop button circuit comprises: an ESD emergency stop button, and a diagnostic resistor connected in series and in parallel to the normally open contact of the ESD emergency stop button for diagnosing the resistance value of the module;

[0007] The power module is configured to: receive an input voltage of 12 to 32V, process the input voltage and output a +5V working voltage to power the system;

[0008] The single-chip circuit is configured to: perform voltage detection on the ESD circuit, and diagnose the circuit state of the ESD circuit based on the result of the voltage detection, wherein the circuit state includes any one of a line short circuit state, a normal state of the emergency stop button, a trigger state of the emergency stop button, or a line open circuit state;

[0009] The state display module is configured as follows: connected between the single-chip circuit and the signal output unit, and includes a plurality of relay circuits corresponding to the line short circuit state, the emergency stop button state and the line open circuit state, respectively, and each of the relay circuits is switched on and off based on the real-time voltage;

[0010] The emergency stop button circuit is connected to the single chip microcomputer circuit.

[0011] Preferably, the power module includes a power IC and a voltage regulator. After the input voltage is input into the power IC, the power IC outputs a 12VDC voltage to the voltage regulator, and the voltage regulator outputs a +5VDC voltage to the single-chip microcomputer circuit.

[0012] Preferably, the single chip circuit includes a main chip U2;

[0013] Pin 6 of the main chip U2 is connected to the positive electrode of the status operation light LED5 through a resistor R16, and the negative electrode of the status operation light LED5 is grounded;

[0014] Pin 7 of the main chip U2 is connected to the pin 1 of the bidirectional breakdown diode TV5, the pin 1 of the switch SW2 and the pin 1 of the resistor R18, and the pin 2 of the bidirectional breakdown diode TV5 is grounded;

[0015] The first pin of the capacitor C10 is connected to the first pin of the switch SW2 through a wire, and the first pin of the capacitor C10 is connected to the first pin of the resistor R18 through a short-circuit wire, and the second pin of the resistor R18 is connected to the +5V voltage terminal; the second pin of the capacitor C10 is connected to the second pin of the switch SW2 through a wire, and the second pin of the capacitor C10 is grounded through a short-circuit wire, and the second pin of the switch SW2 is grounded;

[0016] Pin 8 of the main chip U2 is connected to pin 1 of capacitor C9, pin 1 of capacitor C9 is connected to a +5V voltage terminal via resistor R14, pin 2 of capacitor C9 is grounded, and pin 10 of the main chip U2 is connected to pin 2 of capacitor C9;

[0017] Pin 17 of the main chip U2 is connected to pin 2 of the buzzer BUZZER1, and pin 1 of the buzzer BUZZER1 is connected to a +5V voltage terminal;

[0018] Pin 16 of the main chip U2 is connected to the first pin of the bidirectional breakdown diode TV4, the first pin of the switch SW1 and the first pin of the resistor R17, and the second pin of the bidirectional breakdown diode TV4 is grounded;

[0019] The first pin of the capacitor C5 is connected to the first pin of the switch SW1 through a wire, and the first pin of the capacitor C5 is connected to the first pin of the resistor R17 through a short-circuit wire, and the second pin of the resistor R17 is connected to the +5V voltage terminal; the second pin of the capacitor C5 is connected to the second pin of the switch SW1 through a wire, and the second pin of the capacitor C5 is grounded through a short-circuit wire, and the second pin of the switch SW1 is grounded;

[0020] The 14th pin of the main chip U2 is connected to the cathode of the diode D3, the 1st pin of the capacitor C14, the 1st pin of the resistor R13, and the 1st pin of the resistor R3; the 2nd pin of the resistor R3 is connected to the 1st pin of the resistor R4, the 1st pin of the capacitor C4, and the 1st pin of the bidirectional breakdown diode TV2; the anode of the diode D3, the 2nd pin of the capacitor C14, the 2nd pin of the resistor R13, the 2nd pin of the resistor R4, the 2nd pin of the capacitor C4, and the 1st pin of the bidirectional breakdown diode TV2; The first pin of the bidirectional breakdown diode TV2 is connected to the first pin of the connector J1, the second pin of the connector J1 is connected to the +5V voltage terminal, the third pin of the connector J1 is grounded and connected to the first pin of the bidirectional breakdown diode TV1, the second pin of the bidirectional breakdown diode TV1 is connected to the input voltage, and the second pin of the bidirectional breakdown diode TV1 is connected to the first pin of the fuse F1, and the second pin of the fuse F1 is connected to the fourth pin of the connector J1;

[0021] Pin 13 of the main chip U2 is connected to a pull-up resistor R19;

[0022] Pin 12 of the main chip U2 is connected to pin 2 of the connector J4 via resistor R8, pin 11 of the main chip U2 is connected to pin 3 of the connector J4 via resistor R9, pin 1 of the connector J4 is connected to a +5V voltage terminal, and pin 4 of the connector J4 is grounded;

[0023] A plurality of relay circuits corresponding to the line short circuit state, the emergency stop button state and the line open circuit state are respectively connected to pins 20 to 19 of the main chip U2.

[0024] Preferably, a plurality of relay circuits are respectively connected to the plug connector J3, and a plurality of relay circuits are respectively connected to the connector J2 and connected to the single chip microcomputer circuit through the connector J2.

[0025] Preferably, the relay circuit includes an 8-pin relay, a resistor and a status light, the first pin of the resistor is connected to the +5V voltage terminal, the second pin of the resistor is connected to the positive pole of the status light, the negative pole of the status light is connected to the connector J2, the first pin of the resistor and the negative pole of the status light are connected to the two ends of the coil on the 8-pin relay, and the 8-pin relay is connected to the connector J3.

[0026] In the second aspect, the present application provides an ESD emergency stop circuit diagnostic device based on line signal monitoring, including a device body, in which the ESD emergency stop circuit diagnostic system based on line signal monitoring as described above is arranged; wherein, the device body is provided with status light openings corresponding to the line short circuit state, emergency stop button state, line open circuit state, power supply state and operation indication state, respectively, and the status light opening is used for installing the status light.

[0027] Beneficial effect: The ESD emergency stop circuit diagnostic system and device based on line signal monitoring of the present application, in conjunction with the normally open contact of the on-site ESD button, can self-diagnose the line status between the ESD button and the ESD emergency stop system, and can clearly distinguish the three states of normal emergency stop signal / line break signal / line short circuit signal, and then execute the corresponding interlocking command and output alarm, thereby ensuring the effective interconnection between the ESD button and the signal output unit, and ensuring that effective control of emergency stop can be reliably achieved when needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A structural block diagram of an ESD emergency stop circuit diagnostic system based on line signal monitoring provided in an embodiment of the present application;

[0030] Figure 2 A circuit schematic diagram of a power module of an ESD emergency stop circuit diagnostic system based on line signal monitoring provided in an embodiment of the present application;

[0031] Figure 3 A circuit schematic diagram of a single-chip microcomputer circuit of an ESD emergency stop circuit diagnostic system based on line signal monitoring provided in an embodiment of the present application;

[0032] Figure 4A circuit schematic diagram of a status display module of an ESD emergency stop circuit diagnostic system based on line signal monitoring provided in an embodiment of the present application;

[0033] Figure 5 A circuit structure diagram of a normal emergency stop indication circuit provided in an embodiment of the present application;

[0034] Figure 6 A circuit structure diagram of a circuit breaker indication circuit provided in an embodiment of the present application;

[0035] Figure 7 A circuit structure diagram of a short circuit indication circuit provided in an embodiment of the present application;

[0036] Figure 8 An operating principle diagram of an ESD emergency stop circuit diagnostic system based on line signal monitoring provided in an embodiment of the present application;

[0037] Fig. 9 A schematic diagram of an application of an ESD emergency stop circuit diagnostic device based on line signal monitoring provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0039] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0040] At present, in the ESD emergency stop device, the on-site ESD button is directly connected to the control system (safety relay, PLC / DCS module) through underground cables or overhead cables, and other safety devices are triggered to perform actions by interlocking ESD. A small number of safety modules have line diagnostic functions, and the cost is high. The problem and defect is that the ESD emergency stop button underground or overhead cable loop is damaged, and the line is broken, causing the ESD button to fail to trigger or the line short circuit interlock safety device to malfunction.

[0041] In view of this, this embodiment aims at the problem of underground or overhead cable loop damage between the ESD emergency stop button and the control system, and provides a module that can diagnose the three states of line normal / short circuit / open circuit, which is installed on the control system end to avoid the failure of the line open circuit ESD button triggering or the malfunction of the line short circuit interlock safety device. Figure 1 An ESD emergency stop circuit diagnostic system based on line signal monitoring is shown, including a power module, a single-chip circuit, a status display module, a signal output unit and an emergency stop button circuit. In this embodiment, the emergency stop button circuit is specifically: the normally open contacts of the ESD emergency stop button are respectively connected in series and in parallel with a diagnostic resistor with a matching ESD diagnostic module resistance value. When the ESD button is triggered normally and the line is short-circuited, the current and voltage in the line loop will change when the line is short-circuited. The single-chip computer inside the ESD diagnostic module will analyze the current state of the line loop through the changing current and voltage, and perform state interlocking. The three states cannot be output at the same time, and after the short-circuit or open-circuit state is output, the current state is set and cannot be reset by itself; the module can operate the diagnostic function normally after restarting and resetting. It should be noted that in order to more clearly explain the work content, in Figure 1 The relay working contents and signal status are also indicated in text form.

[0042] The power module is configured to receive an input voltage of 12 to 32V, and output a +5V working voltage for operation and power supply after processing the input voltage; the single-chip microcomputer circuit is configured to perform voltage detection on the ESD circuit, and diagnose the circuit state of the ESD circuit based on the result of the voltage detection, and the circuit state includes any one of a short circuit state, a normal state of the emergency stop button (that is, the button is in a disconnected state), a trigger state of the emergency stop button (that is, the button is in a pressed state), or a circuit open state;

[0043] The status display module is configured as follows: connected between the single-chip computer circuit and the signal output unit, including multiple relay circuits corresponding to the line short-circuit state, the emergency stop button state and the line open circuit state, each relay circuit is switched on and off based on the real-time voltage; the emergency stop button circuit is connected to the single-chip computer circuit.

[0044] In this embodiment, the power module includes a power IC and a voltage regulator. After the input voltage is input to the power IC, the power IC outputs a 12VDC voltage to the voltage regulator, and the voltage regulator outputs a +5VDC voltage to the single-chip microcomputer circuit. Figure 2 As shown in the figure, the specific circuit structure of the power module is not described here. The 12~32V voltage input from VIN in the figure passes through the power chip U1 and Figure 2 With the cooperation of other electronic components in the system, it outputs +5VDC voltage, which is used to power other electronic components in the system. Figure 2 The LED1 in FIG. 1 is a light emitting diode, which indicates the power indicator status light. When the power module is powered on and connected, the LED1 lights up, otherwise, the LED1 lights off.

[0045] In this embodiment, if Figure 3 As shown, the single-chip microcomputer circuit includes a main chip U2.

[0046] Among them, pins 1 to 5, 9 and 15 of the main chip U2 are suspended, pin 6 of the main chip U2 is connected to the positive electrode of the status operation light LED5 through the resistor R16, and the negative electrode of the status operation light LED5 is grounded;

[0047] Pin 7 of the main chip U2 is connected to the pin 1 of the bidirectional breakdown diode TV5, the pin 1 of the switch SW2 and the pin 1 of the resistor R18, and the pin 2 of the bidirectional breakdown diode TV5 is grounded;

[0048] The first pin of the capacitor C10 is connected to the first pin of the switch SW2 through a wire, and the first pin of the capacitor C10 is connected to the first pin of the resistor R18 through a short-circuit wire, and the second pin of the resistor R18 is connected to the +5V voltage terminal; the second pin of the capacitor C10 is connected to the second pin of the switch SW2 through a wire, and the second pin of the capacitor C10 is grounded through a short-circuit wire, and the second pin of the switch SW2 is grounded;

[0049] Pin 8 of the main chip U2 is connected to pin 1 of the capacitor C9, the pin 1 of the capacitor C9 is connected to the +5V voltage terminal through the resistor R14, the pin 2 of the capacitor C9 is grounded, and the pin 10 of the main chip U2 is connected to the pin 2 of the capacitor C9;

[0050] Pin 17 of the main chip U2 is connected to pin 2 of the buzzer BUZZER1, and pin 1 of the buzzer BUZZER1 is connected to the +5V voltage terminal;

[0051] Pin 16 of the main chip U2 is connected to the first pin of the bidirectional breakdown diode TV4, the first pin of the switch SW1 and the first pin of the resistor R17, and the second pin of the bidirectional breakdown diode TV4 is grounded;

[0052] The first pin of the capacitor C5 is connected to the first pin of the switch SW1 through a wire, and the first pin of the capacitor C5 is connected to the first pin of the resistor R17 through a short-circuit wire, and the second pin of the resistor R17 is connected to the +5V voltage terminal; the second pin of the capacitor C5 is connected to the second pin of the switch SW1 through a wire, and the second pin of the capacitor C5 is grounded through a short-circuit wire, and the second pin of the switch SW1 is grounded;

[0053] Pin 14 of the main chip U2 is connected to the cathode of the diode D3, the first pin of the capacitor C14, the first pin of the resistor R13, and the first pin of the resistor R3; the second pin of the resistor R3 is connected to the first pin of the resistor R4, the first pin of the capacitor C4, and the first pin of the bidirectional breakdown diode TV2; the anode of the diode D3, the second pin of the capacitor C14, the second pin of the resistor R13, the second pin of the resistor R4, the second pin of the capacitor C4, and the second pin of the bidirectional breakdown diode TV2 are connected and then grounded; the first pin of the bidirectional breakdown diode TV2 is connected to the first pin of the connector J1, the second pin of the connector J1 is connected to the +5V voltage terminal, the third pin of the connector J1 is grounded and connected to the first pin of the bidirectional breakdown diode TV1, the second pin of the bidirectional breakdown diode TV1 is connected to the input voltage, and the second pin of the bidirectional breakdown diode TV1 is connected to the first pin of the fuse F1, and the second pin of the fuse F1 is connected to the fourth pin of the connector J1;

[0054] Pin 13 of the main chip U2 is connected to a pull-up resistor R19;

[0055] Pin 12 of the main chip U2 is connected to pin 2 of the connector J4 through resistor R8, pin 11 of the main chip U2 is connected to pin 3 of the connector J4 through resistor R9, pin 1 of the connector J4 is connected to the +5V voltage terminal, and pin 4 of the connector J4 is grounded;

[0056] A plurality of relay circuits corresponding to the line short circuit state, the emergency stop button state and the line open circuit state are respectively connected to pins 20 to 19 of the main chip U2.

[0057] In this embodiment, the relay circuit includes an 8-pin relay, a resistor and a status light, the first pin of the resistor is connected to the +5V voltage terminal, the second pin of the resistor is connected to the positive pole of the status light, the negative pole of the status light is connected to the connector J2, the first pin of the resistor and the negative pole of the status light are connected to the two ends of the coil on the 8-pin relay, and the 8-pin relay is connected to the connector J3. For ease of understanding, the relay circuit corresponding to the short-circuit state of the line is defined as a short-circuit indication circuit, the relay circuit corresponding to the emergency stop button state is defined as a button indication circuit, and the relay circuit corresponding to the open circuit state of the line is defined as a disconnection indication circuit. The short-circuit indication circuit, the button indication circuit and the disconnection indication circuit are respectively connected to the connector J3, and multiple relay circuits are respectively connected to the connector J2 and connected to the single-chip computer circuit through the connector J2.

[0058] Specifically, combined Figure 4 and Figure 5 As shown, the button indication circuit includes an 8-pin relay RELAY1, a resistor R10 and an emergency stop status light LED2, wherein the specific circuit structure of the button indication circuit is as follows Figure 5 As shown, this article will not elaborate. Figure 4 and Figure 6 As shown, the circuit breaker indication circuit includes an 8-pin relay RELAY2, a resistor R11 and an emergency stop status light LED3, wherein the specific circuit structure of the circuit breaker indication circuit is as follows Figure 6 As shown, this article will not go into details. Figure 4 and Figure 7 As shown, the short circuit indication circuit includes an 8-pin relay RELAY3, a resistor R11 and an emergency stop status light LED4, wherein the specific circuit structure of the short circuit indication circuit is as follows Figure 7 As shown, this text does not go into details.

[0059] In this embodiment, when the ESD circuit is short-circuited, the voltage detected by the system is 24V; when the emergency stop button in the ESD circuit is connected normally and in a normal state, the corresponding voltage detected by the system may be 5V; when the emergency stop button in the ESD circuit is connected normally and in a triggered state, the corresponding voltage detected by the system may be 10V; when the ESD circuit is broken (i.e., open), the voltage detected by the system is 0V. The specific logic principle of the single-chip microcomputer circuit for detecting the ESD circuit is as follows: Figure 8 As shown, specifically: determine whether short-circuit voltage is detected. When short-circuit voltage is detected, clear the accumulation of open circuit and emergency stop, and count the number of times short-circuit voltage occurs. When the number of times reaches 10, the system determines that the ESD circuit enters the short-circuit state (line short-circuit state) and clears all accumulations and feeds the dog in an endless loop. When short-circuit voltage is not detected, determine whether open circuit voltage (i.e., open circuit voltage) is detected. When open circuit voltage is detected, clear the accumulation of open circuit and emergency stop, and count the number of times open circuit voltage occurs. When the number of times reaches 10, the system determines that the ESD circuit enters the open circuit state (line open circuit state) and clears all accumulations and feeds the dog in an endless loop. When no open circuit voltage is detected, determine whether there is no accumulation of other states. If so, perform emergency stop delay accumulation, and count whether the number of emergency stop delay accumulations reaches 10. If so, determine whether the emergency stop voltage (such as the aforementioned 10V) is detected. When the emergency stop voltage is detected, clear the accumulation of open circuits and short circuits, and count the number of times the emergency stop voltage appears. When the number of times reaches 20 times, the system determines that the ESD circuit enters the emergency stop state (the state where the emergency stop button is pressed) and clears all accumulations. When no emergency stop voltage is detected, clear all accumulations.

[0060] The present embodiment discloses, in a second aspect, an ESD emergency stop circuit diagnostic device based on line signal monitoring, including a device body (such as an aluminum alloy shell), in which the ESD emergency stop circuit diagnostic system based on line signal monitoring as described above is arranged; wherein, the device body is provided with status light openings corresponding to the line short circuit state, emergency stop button state, line open circuit state, power supply state and operation indication state, respectively, and the status light opening is used for installing the status light.

[0061] It should be noted that the ESD emergency stop circuit diagnostic system based on line signal monitoring recorded in this embodiment corresponds to the ESD emergency stop circuit diagnostic device based on line signal monitoring. Therefore, for the parts of the ESD emergency stop circuit diagnostic device based on line signal monitoring that are not further disclosed in this text, reference can be made to the relevant description in the aforementioned ESD emergency stop circuit diagnostic system based on line signal monitoring. At the same time, the corresponding beneficial effects of the ESD emergency stop circuit diagnostic device based on line signal monitoring can also be synchronously referred to the description in the aforementioned ESD emergency stop circuit diagnostic system based on line signal monitoring, and this text will not elaborate on them.

[0062] In this embodiment, if Fig. 9 In the application shown, the DIA diagnostic module is a single-channel diagnosis, that is, each ESD circuit that needs to be diagnosed is equipped with a DIA diagnostic module. The contact of the on-site ESD button is normally open, and a diagnostic component needs to be installed internally. The power supply voltage range of the DIA diagnostic module is DC12V-28V. After normal power supply, the power light is always on, and after normal operation, the operation light flashes (normal diagnostic state). The short circuit / open circuit / emergency stop indicator light is always on, corresponding to the three states on site. The on-site ESD button can be reused to trigger the emergency stop normally. When the on-site ESD button is pressed, the emergency stop status light of the DIA diagnostic module is on; when the on-site ESD button is reset, the emergency stop status light of the DIA diagnostic module is off. When the on-site line is open or short-circuited, the open circuit or short-circuit indicator light corresponding to the DIA diagnostic module is always on, and the DIA diagnostic module operation indicator light is no longer flashing. At this time, the DIA diagnostic module believes that there is a fault in the line and stops running the diagnostic function. At this time, it is necessary to eliminate the fault in the on-site line and restart the DIA diagnostic module to reset it. The DIA diagnostic module will resume normal operation; if it is detected that there is still a fault in the line, it needs to be re-checked and brought to normal operation.

[0063] To sum up, the ESD emergency stop circuit diagnostic system and device based on line signal monitoring in this embodiment, in conjunction with the normally open contact of the on-site ESD button, can self-diagnose the line status between the ESD button and the ESD emergency stop system, and can clearly distinguish the three states of normal emergency stop signal / line disconnection signal / line short circuit signal and connect to the DI input channel of PLC / DCS, and then PLC / DCS executes the corresponding interlocking command and outputs alarm. Among them, the line disconnection and line short circuit signals will output alarm information and will not trigger the emergency stop system, and lock the alarm status. After the line problem is resolved and reset, the module can continue to work.

[0064] In the embodiments provided in the present application, it should be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code or any appropriate combination thereof. For hardware implementation, the processor can be implemented in one or more of the following units: application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, other electronic units designed to implement the functions described herein or their combination. For software implementation, part or all of the flow of the embodiment can be completed by instructing the relevant hardware through a computer program. When implemented, the above program can be stored in a computer-readable storage medium or transmitted as one or more instructions or codes on a computer-readable storage medium. Computer-readable storage media include computer storage media and communication media, wherein the communication medium includes any medium that is convenient for transmitting a computer program from one place to another. The storage medium can be any available medium that a computer can access. The computer-readable storage medium can include but is not limited to RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer.

[0065] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An ESD emergency stop circuit diagnostic system based on line signal monitoring, characterized in that: It includes a power module, a single-chip microcomputer circuit, a status display module, a signal output unit and an emergency stop button circuit; The emergency stop button circuit comprises: an ESD emergency stop button, and a diagnostic resistor connected in series and in parallel to the normally open contact of the ESD emergency stop button for diagnosing the resistance value of the module; The power module is configured to: receive an input voltage of 12 to 32V, process the input voltage and output a +5V working voltage for operation and power supply; The single-chip circuit is configured to: perform voltage detection on the ESD circuit, and diagnose the circuit state of the ESD circuit based on the result of the voltage detection, wherein the circuit state includes any one of a line short circuit state, a normal state of the emergency stop button, a trigger state of the emergency stop button, or a line open circuit state; The state display module is configured as follows: connected between the single-chip circuit and the signal output unit, and includes a plurality of relay circuits corresponding to the line short circuit state, the emergency stop button state and the line open circuit state, respectively, and each of the relay circuits is switched on and off based on the real-time voltage; The emergency stop button circuit is connected to the single chip microcomputer circuit.

2. The ESD emergency stop circuit diagnostic system based on line signal monitoring according to claim 1 is characterized in that: The power module includes a power IC and a voltage regulator. After the input voltage is input into the power IC, the power IC outputs a 12VDC voltage to the voltage regulator, and the voltage regulator outputs a +5VDC voltage to the single-chip microcomputer circuit.

3. The ESD emergency stop circuit diagnostic system based on line signal monitoring according to claim 1 is characterized in that: The single chip circuit includes a main chip U2; Pin 6 of the main chip U2 is connected to the positive electrode of the status operation light LED5 through a resistor R16, and the negative electrode of the status operation light LED5 is grounded; Pin 7 of the main chip U2 is connected to the pin 1 of the bidirectional breakdown diode TV5, the pin 1 of the switch SW2 and the pin 1 of the resistor R18, and the pin 2 of the bidirectional breakdown diode TV5 is grounded; The first pin of the capacitor C10 is connected to the first pin of the switch SW2 through a wire, and the first pin of the capacitor C10 is connected to the first pin of the resistor R18 through a short-circuit wire, and the second pin of the resistor R18 is connected to the +5V voltage terminal; the second pin of the capacitor C10 is connected to the second pin of the switch SW2 through a wire, and the second pin of the capacitor C10 is grounded through a short-circuit wire, and the second pin of the switch SW2 is grounded; Pin 8 of the main chip U2 is connected to pin 1 of capacitor C9, pin 1 of capacitor C9 is connected to a +5V voltage terminal via resistor R14, pin 2 of capacitor C9 is grounded, and pin 10 of the main chip U2 is connected to pin 2 of capacitor C9; Pin 17 of the main chip U2 is connected to pin 2 of the buzzer BUZZER1, and pin 1 of the buzzer BUZZER1 is connected to a +5V voltage terminal; Pin 16 of the main chip U2 is connected to the first pin of the bidirectional breakdown diode TV4, the first pin of the switch SW1 and the first pin of the resistor R17, and the second pin of the bidirectional breakdown diode TV4 is grounded; The first pin of the capacitor C5 is connected to the first pin of the switch SW1 through a wire, and the first pin of the capacitor C5 is connected to the first pin of the resistor R17 through a short-circuit wire, and the second pin of the resistor R17 is connected to the +5V voltage terminal; the second pin of the capacitor C5 is connected to the second pin of the switch SW1 through a wire, and the second pin of the capacitor C5 is grounded through a short-circuit wire, and the second pin of the switch SW1 is grounded; The 14th pin of the main chip U2 is connected to the cathode of the diode D3, the 1st pin of the capacitor C14, the 1st pin of the resistor R13, and the 1st pin of the resistor R3; the 2nd pin of the resistor R3 is connected to the 1st pin of the resistor R4, the 1st pin of the capacitor C4, and the 1st pin of the bidirectional breakdown diode TV2; the anode of the diode D3, the 2nd pin of the capacitor C14, the 2nd pin of the resistor R13, the 2nd pin of the resistor R4, the 2nd pin of the capacitor C4, and the 1st pin of the bidirectional breakdown diode TV2; The first pin of the bidirectional breakdown diode TV2 is connected to the first pin of the connector J1, the second pin of the connector J1 is connected to the +5V voltage terminal, the third pin of the connector J1 is grounded and connected to the first pin of the bidirectional breakdown diode TV1, the second pin of the bidirectional breakdown diode TV1 is connected to the input voltage, and the second pin of the bidirectional breakdown diode TV1 is connected to the first pin of the fuse F1, and the second pin of the fuse F1 is connected to the fourth pin of the connector J1; Pin 13 of the main chip U2 is connected to a pull-up resistor R19; Pin 12 of the main chip U2 is connected to pin 2 of the connector J4 via resistor R8, pin 11 of the main chip U2 is connected to pin 3 of the connector J4 via resistor R9, pin 1 of the connector J4 is connected to a +5V voltage terminal, and pin 4 of the connector J4 is grounded; A plurality of relay circuits corresponding to the line short circuit state, the emergency stop button state and the line open circuit state are respectively connected to pins 20 to 19 of the main chip U2.

4. The ESD emergency stop circuit diagnostic system based on line signal monitoring according to claim 1, characterized in that: A plurality of relay circuits are respectively connected to the plug connector J3, and a plurality of relay circuits are respectively connected to the connector J2 and connected to the single chip microcomputer circuit through the connector J2.

5. The ESD emergency stop circuit diagnostic system based on line signal monitoring according to claim 4 is characterized in that: The relay circuit includes an 8-pin relay, a resistor and a status light, the first pin of the resistor is connected to the +5V voltage terminal, the second pin of the resistor is connected to the positive pole of the status light, the negative pole of the status light is connected to the connector J2, the first pin of the resistor and the negative pole of the status light are connected to the two ends of the coil on the 8-pin relay, and the 8-pin relay is connected to the connector J3.

6. An ESD emergency stop circuit diagnostic device based on line signal monitoring, characterized in that: It includes a device body, in which is disposed an ESD emergency stop circuit diagnostic system based on line signal monitoring as described in any one of claims 1 to 5; wherein, the device body is provided with status light openings corresponding to the line short circuit state, emergency stop button state, line open circuit state, power supply state and operation indication state, respectively, and the status light openings are used for installing status lights.

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