Scram module test tool

Abstract

The utility model discloses an emergency stop module test tool, which comprises a host computer and an emergency stop test module which correspond to each other, the host computer is electrically connected with a central processor, the output end of the central processor is connected with the input end of an emergency stop module to be detected, and a corresponding detection point is reserved on the emergency stop module to be detected. A detection point of the sudden stop module needing to be detected is in contact with a probe reserved by the signal detection unit, and the signal detection unit comprises an analog signal detection unit, a square wave signal detection unit, a sine wave signal detection unit, a polymorphic signal detection unit, a boost detection unit and a buck detection unit. The signal output end of the signal detection unit is electrically connected with the input end of the A / D conversion module, the output end of the A / D conversion module is electrically connected with the central processing unit, the signal detection unit converts analog signals into digital signals through the A / D conversion module and transmits the digital signals to the central processing unit, and the central processing unit processes the received signals and then feeds the signals back to the upper computer. And the upper computer performs display.

Description

Technical Field

[0001] The utility model belongs to the technical field of emergency stop module testing, and relates to a testing tool for an emergency stop module. Background Art

[0002] In the prior art, the emergency stop equipment in the coal mine shaft belongs to production equipment with high safety requirements. The emergency stop button is a necessary safety protection device, and its importance is self-evident. When electrical equipment in the coal mine fails or malfunctions, the emergency stop equipment needs to be pressed to stop urgently to protect the safety of the staff and machinery and equipment in the coal mine. Cutting off the power supply of the equipment immediately when a failure or abnormality is found is one of the effective avoidance methods. Before leaving the factory, the emergency stop switch needs to undergo strict reliability testing and function analysis on its own reliability and service life. However, the emergency stop module testing technology in the prior art is in a semi-automatic mode. The testing instruments in the prior art can only complete simple short-circuit and open-circuit tests in the emergency stop module; the function and performance tests of the emergency stop module can only be completed manually. The deficiencies of this testing method are long testing time, human testing errors, inability to record the intermediate testing process, and the test results are handwritten records by the testers, etc., and the accuracy of the test results is not high. Summary of the Invention

[0003] In view of this, the purpose of the utility model is to provide a more convenient, intuitive and accurate testing tool for the emergency stop module.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A testing tool for an emergency stop module includes a corresponding upper computer and an emergency stop testing module. The upper computer is electrically connected to a central processing unit. The output end of the central processing unit is connected to the input end of the emergency stop module to be detected. The emergency stop module to be detected has corresponding detection points. The detection points of the emergency stop module to be detected are in contact with the probes reserved by the signal detection unit. The signal detection unit includes an analog signal detection unit, a square wave signal detection unit, a sine wave signal detection unit, a multi-state signal detection unit, a boost detection unit and a buck detection unit. The signal output ends of the analog signal detection unit, the square wave signal detection unit, the sine wave signal detection unit, the multi-state signal detection unit, the boost detection unit and the buck detection unit are respectively electrically connected to the input end of the A / D conversion module. The output end of the A / D conversion module is electrically connected to the central processing unit. The signal detection unit converts the analog signal into a digital signal through the A / D conversion module and transmits it to the central processing unit. The central processing unit processes the received signal and then feeds it back to the upper computer, and the upper computer displays it.

[0006] Further, the analog signal detection unit includes a relay J1, resistors R152 and R267 are connected in parallel. The pin 4 of the relay J1 is connected to one end of the parallel connection of resistors R152 and R267. Resistors R5 and R268 are connected in parallel. The other end of the parallel connection of resistors R152 and R267 is connected to one end of the parallel connection of resistors R5 and R268. The other end of the parallel connection of resistors R5 and R268 is connected to the pin 4 of the relay J2 and one end of the resistor R32. The other end of the resistor R32 is connected to the pin 5 of the relay J2 and then grounded to GND; the pin 3 of the relay J1 is connected to the power supply VDD, the pin 6 of the relay J1 is connected to the pin REF, and the pin 1 of the relay J1 is connected to the power supply; resistors R265 and R151 are connected in parallel. The pin 5 of the relay J1 is connected to one end of the parallel connection of resistors R265 and R151. Resistors R74 and R266 are connected in parallel. The other end of the parallel connection of resistors R265 and R151 is connected to one end of the parallel connection of resistors R74 and R266. The other end of the parallel connection of resistors R74 and R266 is connected to the pin 4 of the relay J3 and one end of the resistor R33. The other end of the resistor R33 is connected to the pin 5 of the relay J3; the pin 3 and pin 6 of the relay J3 are respectively connected to the pin 3 and pin 6 of the relay J2; the pin 8 of the relay J1 is connected to the positive electrode of the diode D1 and then connected to one end of the collector of the triode Q3. The emitter of the triode Q3 is grounded to GND. The base of the triode Q3 is connected to one end of the resistor R20. The other end of the resistor R20 is connected to the pin P-ON; the pin 8 of the relay J3 is connected to the positive electrode of the diode D6 and then connected to one end of the collector of the triode Q6. The emitter of the triode Q6 is grounded to GND. The base of the triode Q6 is connected to one end of the resistor R47. The other end of the resistor R47 is connected to the pin A2; the negative electrode of the diode D6 is connected to the pin 1 of the relay J3 and then outputs an analog signal to the A / D conversion module.

[0007] Further, the square wave signal detection unit includes a multiplex comparator U15 and a multiplex comparator U17. Pin 5 of multiplex comparator U15 is connected to pin 2 of multiplex comparator U15, one end of capacitor C66, and pin 5 of U17. Pin 4 of U15 is connected to the other end of capacitor C66 and pin 3 of multiplex comparator U17. Pin 2 of multiplex comparator U15 is also connected to one end of capacitor C67 and then grounded to GND. The other end of capacitor C67 is connected to pin 3 of multiplex comparator U15 and then connected to the power supply. Pins 1 and 2 of multiplex comparator U17 are connected and then connected to one end of resistor R121. The other end of resistor R121 is connected to the non-inverting input terminal of operational amplifier U8.4. Pin 4 of multiplex comparator U17 is connected to one end of capacitor C70 and then connected to the power supply. The other end of capacitor C70 is connected to one end of resistor R118. The other end of resistor R118 is connected to the inverting input terminal of operational amplifier U8.4, capacitor C75, and one end of resistor R109. The other ends of capacitor C75 and resistor R109 are connected and then connected to the output terminal of operational amplifier U8.4 and one end of resistor R119. The other end of resistor R119 is connected to the base of transistor Q20. The collector of transistor Q20 is connected to the output port out. The emitter of transistor Q20 is connected to one end of resistor R123. The other end of resistor R123 is connected to the positive electrode of diode D53, one end of resistor R143, and the output terminal of operational amplifier U4.1. The negative electrode of diode D53 and the other end of resistor R143 are connected and then connected to the 3.3V power supply. The positive power supply terminal of operational amplifier U4.1 is connected to one end of resistor R140 and one end of capacitor C10 and then connected to the 5V power supply. The other end of capacitor C10 is grounded to GND. The other end of resistor R140 is connected to the inverting input terminal of operational amplifier U4.1 and one end of resistor R142 and then grounded to GND. The other end of resistor R142 is connected to the negative power supply terminal of operational amplifier U4.1 and one end of resistor R141 and then grounded to GND. The other end of resistor R141 is connected to the non-inverting input terminal of operational amplifier U4.1 and then connected to pin A1. The output terminal of operational amplifier U4.2 is connected to one end of resistor R154 and the positive electrode of diode D52 and then leads out an output terminal to output a square wave signal. The other end of resistor R154 and the negative electrode of diode D52 are connected and then connected to the 3.3V power supply. The non-inverting input terminal of operational amplifier U4.2 is connected to one end of resistor R153. The other end of resistor R153 is connected to the inverting input terminal of operational amplifier U4.1 and then grounded to GND.

[0008] Further, the sine wave signal detection unit includes a dual-channel operational amplifier U32. One end of the pin 4 of the dual-channel operational amplifier U32 is connected to one end of the capacitor C96. The other end of the capacitor C96 is connected to the pin 5 of the dual-channel operational amplifier U32 and one end of the resistor R285. The other end of the resistor R285 is connected to one end of the capacitor C102. The other end of the capacitor C102 is connected to one end of the resistor R286, the pins 6 and 7 of the dual-channel operational amplifier U32, and one end of the capacitor C98. The other end of the resistor R286 is connected to the input terminal IN. The other end of the capacitor C98 is connected to one end of the resistor R289, the base of the triode Q53, and one end of the resistor R288. The other end of the resistor R289 is connected to the power supply DVCC. The other end of the resistor R288 is connected to one end of the resistor R287 and the emitter of the triode Q58 and then grounded to GND. The other end of the resistor R287 is connected to the emitter of the triode Q53. The collector of the triode Q53 is connected to one end of the resistor R296. The other end of the resistor R296 is connected to the base of the triode Q58. The collector of the triode Q58 outputs a signal. The collector of the triode Q58 is also connected to one end of the resistor R295, one end of the capacitor C99, and one end of the resistor R290. The other end of the resistor R290 is connected to one end of the capacitor C101. The other end of the capacitor C101 is connected to the other end of the capacitor C99 and the other end of the resistor R295. One end of the pin 8 of the dual-channel operational amplifier U32 is connected to one end of the capacitor C97. The other end of the capacitor C97 is grounded to GND.

[0009] Further, the polymorphic signal detection unit includes a comparator U12. One end of the pin 1 of the comparator U12 is connected to one end of a capacitor C57, the positive electrode end of an electrolytic capacitor C64, the pin 1 of a relay J13, and the negative electrode end of a diode D21. The other end of the capacitor C57 and the negative electrode end of the electrolytic capacitor C64 are connected to the pin 2 of the comparator U12, one end of a capacitor C59, and one end of a resistor RG1, and then grounded to GND. The other end of the capacitor C59 is connected to the pin 3 of the comparator U12 and one end of a resistor R59. The other end of the resistor R59 is connected to the positive electrode end of an electrolytic capacitor C65, one end of a capacitor C61, and the pins 1 and 3 of a comparator U13. The other end of the resistor RG1 is connected to the negative electrode end of the electrolytic capacitor C65, the other end of the capacitor C61, the pins 2 and 4 of the comparator U13, and one end of a capacitor C60, and then grounded. The pin 5 of the comparator U13 is connected to the other end of the capacitor C60 and then outputs a signal to the A / D conversion module. The positive electrode end of the diode D21 is connected to the pin 8 of the relay J13 and then connected to the collector end of a triode Q21. The emitter of the triode Q21 is grounded. The base of the triode Q21 is connected to one end of a resistor R117, and the other end of the resistor R117 is connected to a 10V power supply. The pin 6 of the relay J13 is connected to the positive electrode end of a diode D25. The negative electrode end of the diode D25 is connected to the negative electrode end of a diode D26 and then connected to port C. The positive electrode end of the diode D26 is connected to the pin 6 of a relay J5. The pin 1 of the relay J5 is connected to the negative electrode end of a diode D16. The positive electrode end of the diode D16 is connected to the pin 8 of the relay J5 and the collector of a triode Q28. The emitter of the triode Q28 is grounded. The base of the triode Q28 is connected to one end of a resistor R9, and the other end of the resistor R9 is connected to a 10V power supply.

[0010] Further, the boost detection unit includes a triode Q49. The emitter of the triode Q49 is connected to one end of a resistor R261 and then connected to the power supply terminal DVCC. The other end of the resistor R261 is connected to one end of a resistor R258 and the collector of a triode Q50. The other end of the resistor R258 is connected to the base of the triode Q49. The base of the triode Q50 is connected to one end of a resistor R260. The other end of the resistor R260 is connected to interface A4. The emitter of the triode Q50 is connected to the emitter of a triode Q51, one end of a resistor R264, and one end of a resistor R263, and then grounded to GND. The collector of the triode Q49 is connected to one end of a resistor R256. The other end of the resistor R256 is connected to one end of a resistor R262. The other end of the resistor R262 is connected to the base of the triode Q51. The collector of the triode Q51 is connected to the pin 8 of a relay J21 and the positive electrode of a diode D49. The negative electrode of the diode D49 is connected to the pin 1 of the relay J21 and then connected to a 5V power supply. The other ends of the resistor R264 and the resistor R263 are connected and then connected to the pin 5 of the relay J21. The pin 6 of the switch outputs a signal.

[0011] Further, the step-down detection unit includes an operational amplifier U26.1. The non-inverting input terminal of the operational amplifier U26.1 is connected to one end of a resistor R256 and one end of a resistor R252. The other end of the resistor R252 is connected to the power supply DVCC. The other end of the resistor R256 is connected to one end of a resistor R255 and the negative power supply terminal of the operational amplifier U26.1, and then grounded to GND. The inverting input terminal of the operational amplifier U26.1 is connected to the other end of the resistor R255 and then connected to terminal A3. The positive power supply terminal of the operational amplifier U26.1 is connected to one end of a capacitor C92 and then connected to the 3.3V power supply. The other end of the capacitor C92 is grounded to GND.

[0012] The output terminal of the operational amplifier U26.1 is connected to one end of a resistor R254, the positive electrode terminal of a diode D54, the non-inverting input terminal of an operational amplifier U23.1, and one end of a resistor R41. The other end of the resistor R254 and the negative electrode terminal of the diode D54 are connected to the positive power supply terminal of the operational amplifier U23.1 and then connected to the 3.3V power supply. The inverting input terminal of the operational amplifier U23.1 is connected to the output terminal of the operational amplifier U23.1. The output terminal of the operational amplifier U23.1 is also connected to pin 4 of a relay J17. The negative power supply terminal of the operational amplifier U23.1 is connected to pin 2 of the relay J17. Pin 5 of the relay J17 is connected to the emitter of a triode Q31 and then grounded to GND. The collector of the triode Q31 is connected to pin 8 of a switch and the positive electrode of a diode D27. The base of the triode Q31 is connected to one end of a resistor R51. The other end of the resistor R51 is connected to a selection switch SELECT. The negative electrode of the diode D27 is connected to pin 1 of the relay J17 and one end of a resistor R49. The other end of the resistor R49 is connected to the base of a triode Q32. The emitter of the triode Q32 is grounded. The collector of the triode Q32 is connected to pin 8 of a relay J18. Pin 1 of the relay J18 is connected to the 5V power supply. Pin 5 of the relay J18 is connected to pin 6 of the relay J17. Pin 6 of the relay J18 outputs a signal to an A / D conversion module. Pin 7 of the relay J18 is connected to one end of a resistor R55. The other end of the resistor R55 is connected to one end of a resistor R88 and the collector of a triode Q34. The emitter of the triode Q34 is connected to the other end of the resistor R88 and then grounded to GND. The base of the triode Q34 is connected to one end of a resistor R89. The other end of the resistor R89 is connected to a switch ON / OFF.

[0013] Pin 4 of the relay J18 is connected to the other end of the resistor R41 and the collector of a triode Q33. The emitter of the triode Q33 is grounded to GND. The base of the triode Q33 is connected to one end of a resistor R40. The other end of the resistor R40 is connected to the switch ON / OFF.

[0014] The beneficial effects of the present utility model are as follows:

[0015] The present utility model can shorten the test time, improve the test efficiency, eliminate human test errors, completely record the intermediate test process, and automatically save the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The attached drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0017] Figure 1 is the working principle diagram of the embodiment of the present utility model;

[0018] Figure 2 is the circuit diagram of the analog signal detection unit described in the embodiment of the present utility model;

[0019] Figure 3 is the circuit diagram of the square wave signal detection unit described in the embodiment of the present utility model;

[0020] Figure 4 is the circuit diagram of the sine wave signal detection unit described in the embodiment of the present utility model;

[0021] Figure 5 is the circuit diagram of the polymorphic signal detection unit described in the embodiment of the present utility model;

[0022] Figure 6 is the circuit diagram of the boost signal detection unit described in the embodiment of the present utility model;

[0023] Figure 7 is the circuit diagram of the buck signal detection unit described in the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0027] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0028] As shown in the figure, a testing tool for an emergency stop module includes a corresponding host computer and an emergency stop test module. The host computer is electrically connected to a central processing unit, and the output end of the central processing unit is connected to the input end of the emergency stop module to be detected. The emergency stop module to be detected has corresponding detection points, and the detection points of the emergency stop module to be detected are in contact with the metal probes reserved by the signal detection unit. The signal detection unit includes an analog signal detection unit, a square wave signal detection unit, a sine wave signal detection unit, a multi-state signal detection unit, a boost detection unit, and a buck detection unit. The signal output ends of the analog signal detection unit, the square wave signal detection unit, the sine wave signal detection unit, the multi-state signal detection unit, the boost detection unit, and the buck detection unit are respectively electrically connected to the input end of the A / D conversion module, and the output end of the A / D conversion module is electrically connected to the central processing unit. The analog signal detection unit, the square wave signal detection unit, the sine wave signal detection unit, the multi-state signal detection unit, the boost detection unit, and the buck detection unit respectively convert analog signals into digital signals through the A / D conversion module and transmit them to the central processing unit. The central processing unit processes the received signals and then feeds them back to the host computer for display.

[0029] The analog signal detection unit includes a relay J1, resistors R152 and R267 in parallel. The pin 4 of the relay J1 is connected to one end of the parallel connection of the resistors R152 and R267. Resistors R5 and R268 are in parallel. The other end of the parallel connection of the resistors R152 and R267 is connected to one end of the parallel connection of the resistors R5 and R268. The other end of the parallel connection of the resistors R5 and R268 is connected to the pin 4 of the relay J2 and one end of the resistor R32. The other end of the resistor R32 is connected to the pin 5 of the relay J2 and then grounded to GND.

[0030] The pin 3 of the relay J1 is connected to the power supply VDD, the pin 6 of the relay J1 is connected to the pin REF, and the pin 1 of the relay J1 is connected to a 5V power supply. Resistors R265 and R151 are in parallel. The pin 5 of the relay J1 is connected to one end of the parallel connection of the resistors R265 and R151. Resistors R74 and R266 are in parallel. The other end of the parallel connection of the resistors R265 and R151 is connected to one end of the parallel connection of the resistors R74 and R266. The other end of the parallel connection of the resistors R74 and R266 is connected to the pin 4 of the switch J3 and one end of the resistor R33. The other end of the resistor R33 is connected to the pin 5 of the relay J3. The pin 3 and the pin 6 of the relay J3 are respectively connected to the pin 3 and the pin 6 of the relay J2.

[0031] The pin 8 of the relay J1 is connected to the positive electrode of the diode D1 and then connected to one end of the collector of the triode Q3. The emitter of the triode Q3 is grounded to GND. The base of the triode Q3 is connected to one end of the resistor R20. The other end of the resistor R20 is connected to the pin P-ON.

[0032] The pin 8 of the relay J3 is connected to the positive electrode of the diode D6 and then connected to one end of the collector of the triode Q6. The emitter of the triode Q6 is grounded to GND. The base of the triode Q6 is connected to one end of the resistor R47. The other end of the resistor R47 is connected to the pin A2. The pin A2 is the input port of the analog signal detection unit. The measured analog signal output by the emergency stop module is input to the analog signal detection unit from the pin A2. The negative electrode of the diode D6 is connected to the pin 1 of the relay J3 and then outputs the analog signal to the A / D conversion module.

[0033] The square wave signal detection unit includes a multiplex comparator U15 and a multiplex comparator U17. Pin 5 of the multiplex comparator U15 is connected to pin 2 of the multiplex comparator U15, one end of a capacitor C66, and pin 5 of the multiplex comparator U17. Pin 4 of the multiplex comparator U15 is connected to the other end of the capacitor C66 and pin 3 of the multiplex comparator U17. Pin 2 of the multiplex comparator U15 is also connected to one end of a capacitor C67 and then grounded to GND. The other end of the capacitor C67 is connected to pin 3 of the multiplex comparator U15 and then connected to a power supply with a voltage of 3.3V.

[0034] Pin 1 and pin 2 of the multiplex comparator U17 are connected and then connected to one end of a resistor R121. The other end of the resistor R121 is connected to the non-inverting input terminal of the operational amplifier U8.4. Pin 4 of the multiplex comparator U17 is connected to one end of a capacitor C70 and then connected to a power supply voltage of 3.3V. The other end of the capacitor C70 is connected to one end of a resistor R118. The other end of the resistor R118 is connected to the inverting input terminal of the operational amplifier U8.4, a capacitor C75, and one end of a resistor R109. The other ends of the capacitor C75 and the resistor R109 are connected and then connected to the output terminal of the operational amplifier U8.4 and one end of a resistor R119. The other end of the resistor R119 is connected to the base of a triode Q20. The collector of the triode Q20 is connected to the output port out. The emitter of the triode Q20 is connected to one end of a resistor R123. The other end of the resistor R123 is connected to the positive electrode of a diode D53, one end of a resistor R143, and the output terminal of the operational amplifier U4.1. The negative electrode of the diode D53 and the other end of the resistor R143 are connected and then connected to a power supply of 3.3V.

[0035] The positive power supply terminal of the operational amplifier U4.1 is connected to one end of a resistor R140 and one end of a capacitor C10 and then connected to a 5V power supply. The other end of the capacitor C10 is grounded to GND. The other end of the resistor R140 is connected to the inverting input terminal of the operational amplifier U4.1 and one end of a resistor R142 and then grounded to GND. The other end of the resistor R142 is connected to the negative power supply terminal of the operational amplifier U4.1 and one end of a resistor R141 and then grounded to GND. The other end of the resistor R141 is connected to the non-inverting input terminal of the operational amplifier U4.1 and then connected to pin A1. Pin A1 is the input of the square wave signal detection unit. The output signal pin of the emergency stop module is connected to pin A1.

[0036] The output terminal of the operational amplifier U4.2 is connected to one end of a resistor R154 and the positive electrode of a diode D52 and then leads out an output terminal to output a square wave signal to the A / D conversion module. The other end of the resistor R154 and the negative electrode of the diode D52 are connected and then connected to a 3.3V power supply. The non-inverting input terminal of the operational amplifier U4.2 is connected to one end of a resistor R153. The other end of the resistor R153 is connected to the inverting input terminal of the operational amplifier U4.1 and then grounded to GND.

[0037] The sine wave signal detection unit includes a dual-channel operational amplifier U32. One end of a capacitor C96 is connected to pin 4 of the dual-channel operational amplifier U32, and the other end of the capacitor C96 is connected to pin 5 of the dual-channel operational amplifier U32, one end of a resistor R285. The other end of the resistor R285 is connected to one end of a capacitor C102, and the other end of the capacitor C102 is connected to one end of a resistor R286, pin 6 and pin 7 of the dual-channel operational amplifier U32, and one end of a capacitor C98. The other end of the resistor R286 is connected to the input terminal IN, and the sine wave output pin of the emergency stop module is connected to the input terminal IN. The other end of the capacitor C98 is connected to one end of a resistor R289, the base of a triode Q53, and one end of a resistor R288. The other end of the resistor R289 is connected to the power supply DVCC. The other end of the resistor R288 is connected to one end of a resistor R287 and the emitter of a triode Q58 and then grounded at GND. The other end of the resistor R287 is connected to the emitter of the triode Q53. The collector of the triode Q53 is connected to one end of a resistor R296, and the other end of the resistor R296 is connected to the base of the triode Q58. The collector of the triode Q58 outputs a signal, and the collector of the triode Q58 is also connected to one end of a resistor R295, one end of a capacitor C99, and one end of a resistor R290. The other end of the resistor R290 is connected to one end of a capacitor C101, and the other end of the capacitor C101 is connected to the other end of the capacitor C99 and the other end of the resistor R295. One end of a capacitor C97 is connected to pin 8 of the dual-channel operational amplifier U32, and the other end of the capacitor C97 is grounded at GND.

[0038] The polymorphic signal detection unit includes a comparator U12. Pin 1 of the comparator U12 is connected to one end of a capacitor C57, the positive terminal of an electrolytic capacitor C64, pin 1 of a switch J13, and the negative terminal of a diode D21. The other end of the capacitor C57 and the negative terminal of the electrolytic capacitor C64 are connected to pin 2 of the chip U12, one end of a capacitor C59, and one end of a resistor RG1 and then grounded at GND. The other end of the capacitor C59 is connected to pin 3 of the comparator U12 and one end of a resistor R59. The other end of the resistor R59 is connected to the positive terminal of an electrolytic capacitor C65, one end of a capacitor C61, and pins 1 and 3 of a chip U13. The other end of the resistor RG1 is connected to the negative terminal of the electrolytic capacitor C65, the other end of the capacitor C61, pins 2 and 4 of the comparator U13, and one end of a capacitor C60 and then grounded. Pin 5 of the comparator U13 is connected to the other end of the capacitor C60 and then outputs a signal to the A / D conversion module.

[0039] The positive terminal of diode D21 is connected to pin 8 of relay J13 and then to the collector terminal of transistor Q21; the emitter of transistor Q21 is grounded; the base of transistor Q21 is connected to one end of resistor R117, and the other end of resistor R117 is connected to a 10V power supply; pin 6 of relay J13 is connected to the positive terminal of diode D25; the negative terminal of diode D25 is connected to the negative terminal of diode D26 and then connected to port C. Port C is the input port of the polymorphic signal of the emergency stop module, and port C is the closed signal in the polymorphic signal; pin 5 of relay J13 is the signal input terminal, and pin 5 of relay J13 is the input port of the open signal in the polymorphic signal. The positive terminal of diode D26 is connected to pin 6 of relay J5; pin 1 of relay J5 is connected to the negative terminal of diode D16; the positive terminal of diode D16 is connected to pin 8 of relay J5 and the collector of transistor Q28; the emitter of transistor Q28 is grounded; the base of transistor Q28 is connected to one end of resistor R9, and the other end of resistor R9 is connected to a 10V power supply; pin 5 of relay J5 is connected to port N, and port N is the input terminal of the high impedance state signal in the polymorphic signal.

[0040] The boost detection unit includes transistor Q49. The emitter of transistor Q49 is connected to one end of resistor R261 and then connected to the power supply terminal DVCC; the other end of resistor R261 is connected to one end of resistor R258 and the collector of transistor Q50; the other end of resistor R258 is connected to the base of transistor Q49; the base of transistor Q50 is connected to one end of resistor R260; the other end of resistor R260 is connected to interface A4. Interface A4 is the input signal port of the boost detection unit, and the boost detection unit is connected to the boost signal output terminal of the emergency stop board through the probe of the bed of nails board; the emitter of transistor Q50 is connected to the emitter of transistor Q51, one end of resistor R264, and one end of resistor R263 and then grounded to GND; the collector of transistor Q49 is connected to one end of resistor R256; the other end of resistor R256 is connected to one end of resistor R262; the other end of resistor R262 is connected to the base of transistor Q51; the collector of transistor Q51 is connected to pin 8 of relay J21 and the positive electrode of diode D49; the negative electrode of diode D49 is connected to pin 1 of relay J21 and then connected to a 5V power supply; the other ends of resistor R264 and resistor R263 are connected and then connected to pin 5 of relay J21; pin 6 of relay J21 outputs a signal.

[0041] The step-down detection unit includes operational amplifier U26.1. The non-inverting input terminal of operational amplifier U26.1 is connected to one end of resistor R256 and one end of resistor R252. The other end of resistor R252 is connected to power supply DVCC. The other end of resistor R256 is connected to one end of resistor R255 and the negative power supply terminal of operational amplifier U26.1, and then grounded to GND. The inverting input terminal of operational amplifier U26.1 is connected to the other end of resistor R255 and then connected to interface A3. Interface A3 is the input signal terminal of the step-down detection unit, and interface A3 is connected to the step-down signal of the emergency stop board through the probe of the bed of nails board. The positive power supply terminal of operational amplifier U26.1 is connected to one end of capacitor C92 and then connected to the 3.3V power supply. The other end of capacitor C92 is grounded to GND.

[0042] The output terminal of operational amplifier U26.1 is connected to one end of resistor R254, the positive terminal of diode D54, the non-inverting input terminal of operational amplifier U23.1, and one end of resistor R41. The other end of resistor R254 and the negative terminal of diode D54 are connected to the positive power supply terminal of operational amplifier U23.1 and then connected to the 3.3V power supply. The inverting input terminal of operational amplifier U23.1 is connected to the output terminal of operational amplifier U23.1. The output terminal of operational amplifier U23.1 is also connected to pin 4 of relay J17. The negative power supply terminal of operational amplifier U23.1 is connected to pin 2 of relay J17. Pin 5 of relay J17 is connected to the emitter of triode Q31 and then grounded to GND. The collector of triode Q31 is connected to pin 8 of relay J17 and the positive pole of diode D27. The base of triode Q31 is connected to one end of resistor R51. The other end of resistor R51 is connected to selector switch SELECT. The negative pole of diode D27 is connected to pin 1 of relay J17 and one end of resistor R49. The other end of resistor R49 is connected to the base of triode Q32. The emitter of triode Q32 is grounded. The collector of triode Q32 is connected to pin 8 of relay J18. Pin 1 of relay J18 is connected to the 5V power supply. Pin 5 of relay J18 is connected to pin 6 of relay J17. Pin 6 of relay J18 outputs a signal to the A / D conversion module. Pin 7 of relay J18 is connected to one end of resistor R55. The other end of resistor R55 is connected to one end of resistor R88 and the collector of triode Q34. The emitter of triode Q34 is connected to the other end of resistor R88 and then grounded to GND. The base of triode Q34 is connected to one end of resistor R89. The other end of resistor R89 is connected to switch ON / OFF.

[0043] Pin 4 of relay J18 is connected to the other end of resistor R41 and the collector of transistor Q33; the emitter of transistor Q33 is grounded to GND; the base of transistor Q33 is connected to one end of resistor R40, and the other end of resistor R40 is connected to switch ON / OFF, which controls the energization and de-energization of relay J18.

[0044] The working principle of the present utility model:

[0045] The emergency stop test tooling mainly completes the test of the overall functions of the emergency stop module. Each functional module output of the emergency stop module has a corresponding test point, and these test points are connected to the corresponding signal detection units of the emergency stop test module through metal probes. The tester operates the upper computer to send an instruction of "start testing" to the emergency stop test module. After receiving the instruction, the emergency stop test module starts the test. The entire test process is mainly controlled by the central processing unit. The central processing unit sets the detection timing and starts each signal detection unit step by step. After being started, the signal detection unit starts to detect the output signal of the corresponding functional module in the emergency stop. After the detection is completed, the signal is converted into a digital quantity through the A / D conversion module and transmitted to the central processing unit. After all the function detections are completed, the central processing unit sends the detection results to the upper computer. The upper computer displays and saves the test results.

[0046] The following provides the detection results of some signals.

[0047] The detection results of the square wave signal are shown in Table 1

[0048] Table 1

[0049]

[0050] The detection results of the sine wave signal are shown in Table 2

[0051] Table 2

[0052]

[0053]

[0054] The boost detection results are shown in Table 3

[0055] Table 3

[0056]

[0057] The buck detection results are shown in Table 4

[0058] Table 4

[0059]

[0060]

[0061] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An emergency stop module test tooling, comprising a corresponding host computer and an emergency stop test module. The host computer is electrically connected to a central processing unit, and the output end of the central processing unit is connected to the input end of the emergency stop module to be detected, characterized in that: The emergency stop module to be detected has corresponding detection points. The detection points of the emergency stop module to be detected are in contact with the probes reserved by the signal detection unit. The signal detection unit includes an analog signal detection unit, a square wave signal detection unit, a sine wave signal detection unit, a polymorphic signal detection unit, a boost detection unit, and a buck detection unit. The signal output ends of the analog signal detection unit, the square wave signal detection unit, the sine wave signal detection unit, the polymorphic signal detection unit, the boost detection unit, and the buck detection unit are respectively electrically connected to the input end of the A / D conversion module. The output end of the A / D conversion module is electrically connected to the central processor. The signal detection unit converts the analog signal into a digital signal through the A / D conversion module and transmits it to the central processor. The central processor processes the received signal and then feeds it back to the host computer, and the host computer displays it.

2. The emergency stop module testing tooling according to claim 1, characterized in that: The analog signal detection unit includes a relay J1. Resistor R152 and resistor R267 are in parallel. The pin 4 of the relay J1 is connected to one end after the parallel connection of resistor R152 and resistor R267. Resistor R5 and resistor R268 are in parallel. The other end after the parallel connection of resistor R152 and resistor R267 is connected to one end after the parallel connection of resistor R5 and resistor R268. The other end after the parallel connection of resistor R5 and resistor R268 is connected to the pin 4 of the relay J2 and one end of resistor R32. The other end of resistor R32 is connected to the pin 5 of the relay J2 and then grounded to GND; the pin 3 of the relay J1 is connected to the power supply VDD, the pin 6 of the relay J1 is connected to the pin REF, and the pin 1 of the relay J1 is connected to the power supply; resistor R265 and resistor R151 are in parallel. The pin 5 of the relay J1 is connected to one end after the parallel connection of resistor R265 and resistor R151. Resistor R74 and resistor R266 are in parallel. The other end after the parallel connection of resistor R265 and resistor R151 is connected to one end after the parallel connection of resistor R74 and resistor R266. The other end after the parallel connection of resistor R74 and resistor R266 is connected to the pin 4 of the relay J3 and one end of resistor R33. The other end of resistor R33 is connected to the pin 5 of the relay J3; the pin 3 and pin 6 of the relay J3 are respectively connected to the pin 3 and pin 6 of the relay J2; the pin 8 of the relay J1 is connected to the positive pole of the diode D1 and then connected to one end of the collector of the triode Q3. The emitter of the triode Q3 is grounded to GND. The base of the triode Q3 is connected to one end of resistor R20. The other end of resistor R20 is connected to the pin P-ON; the pin 8 of the relay J3 is connected to the positive pole of the diode D6 and then connected to one end of the collector of the triode Q6. The emitter of the triode Q6 is grounded to GND. The base of the triode Q6 is connected to one end of resistor R47. The other end of resistor R47 is connected to the pin A2; the negative pole of the diode D6 is connected to the pin 1 of the relay J3 and then outputs an analog signal to the A / D conversion module.

3. The emergency stop module test tooling according to claim 1, characterized in that: The square wave signal detection unit includes a multiplex comparator U15 and a multiplex comparator U17. Pin 5 of the multiplex comparator U15 is connected to pin 2 of the multiplex comparator U15, one end of the capacitor C66, and pin 5 of U17. Pin 4 of U15 is connected to the other end of the capacitor C66 and pin 3 of the multiplex comparator U17. Pin 2 of the multiplex comparator U15 is also connected to one end of the capacitor C67 and then grounded to GND. The other end of the capacitor C67 is connected to pin 3 of the multiplex comparator U15 and then connected to the power supply. Pins 1 and 2 of the multiplex comparator U17 are connected and then connected to one end of the resistor R121. The other end of the resistor R121 is connected to the non-inverting input terminal of the operational amplifier U8.

4. Pin 4 of the multiplex comparator U17 is connected to one end of the capacitor C70 and then connected to the power supply. The other end of the capacitor C70 is connected to one end of the resistor R118. The other end of the resistor R118 is connected to the inverting input terminal of the operational amplifier U8.4, the capacitor C75, and one end of the resistor R109. The other ends of the capacitor C75 and the resistor R109 are connected and then connected to the output terminal of the operational amplifier U8.4 and one end of the resistor R119. The other end of the resistor R119 is connected to the base of the triode Q20. The collector of the triode Q20 is connected to the output port out. The emitter of the triode Q20 is connected to one end of the resistor R123. The other end of the resistor R123 is connected to the positive electrode of the diode D53, one end of the resistor R143, and the output terminal of the operational amplifier U4.

1. The negative electrode of the diode D53 and the other end of the resistor R143 are connected and then connected to the 3.3V power supply. The positive power supply terminal of the operational amplifier U4.1 is connected to one end of the resistor R140 and one end of the capacitor C10 and then connected to the 5V power supply. The other end of the capacitor C10 is grounded to GND. The other end of the resistor R140 is connected to the inverting input terminal of the operational amplifier U4.1 and one end of the resistor R142 and then grounded to GND. The other end of the resistor R142 is connected to the negative power supply terminal of the operational amplifier U4.1 and one end of the resistor R141 and then grounded to GND. The other end of the resistor R141 is connected to the non-inverting input terminal of the operational amplifier U4.1 and then connected to pin A1. The output terminal of the operational amplifier U4.2 is connected to one end of the resistor R154 and the positive electrode of the diode D52 and then leads out the output terminal to output the square wave signal. The other end of the resistor R154 and the negative electrode of the diode D52 are connected and then connected to the 3.3V power supply. The non-inverting input terminal of the operational amplifier U4.2 is connected to one end of the resistor R153. The other end of the resistor R153 is connected to the inverting input terminal of the operational amplifier U4.1 and then grounded to GND.

4. The emergency stop module testing tooling according to claim 1, wherein: The sine wave signal detection unit includes a dual-channel operational amplifier U32. One end of the capacitor C96 is connected to pin 4 of the dual-channel operational amplifier U32, and the other end of the capacitor C96 is connected to pin 5 of the dual-channel operational amplifier U32, one end of the resistor R285. The other end of the resistor R285 is connected to one end of the capacitor C102, and the other end of the capacitor C102 is connected to one end of the resistor R286, pins 6 and 7 of the dual-channel operational amplifier U32, and one end of the capacitor C98. The other end of the resistor R286 is connected to the input terminal IN. The other end of the capacitor C98 is connected to one end of the resistor R289, the base of the triode Q53, and one end of the resistor R288. The other end of the resistor R289 is connected to the power supply DVCC. The other end of the resistor R288 is connected to one end of the resistor R287 and the emitter of the triode Q58 and then grounded to GND. The other end of the resistor R287 is connected to the emitter of the triode Q53. The collector of the triode Q53 is connected to one end of the resistor R296, and the other end of the resistor R296 is connected to the base of the triode Q58. The collector of the triode Q58 outputs a signal, and the collector of the triode Q58 is also connected to one end of the resistor R295, one end of the capacitor C99, and one end of the resistor R290. The other end of the resistor R290 is connected to one end of the capacitor C101, and the other end of the capacitor C101 is connected to the other end of the capacitor C99 and the other end of the resistor R295. One end of the capacitor C97 is connected to pin 8 of the dual-channel operational amplifier U32, and the other end of the capacitor C97 is grounded to GND.

5. The emergency stop module test tooling according to claim 1, characterized in that: The polymorphic signal detection unit includes a comparator U12. Pin 1 of the comparator U12 is connected to one end of a capacitor C57, the positive electrode terminal of an electrolytic capacitor C64, pin 1 of a relay J13, and the negative electrode terminal of a diode D21. The other end of the capacitor C57 and the negative electrode terminal of the electrolytic capacitor C64 are connected to pin 2 of the comparator U12, one end of a capacitor C59, and one end of a resistor RG1, and then grounded to GND. The other end of the capacitor C59 is connected to pin 3 of the comparator U12 and one end of a resistor R59. The other end of the resistor R59 is connected to the positive electrode terminal of an electrolytic capacitor C65, one end of a capacitor C61, and pins 1 and 3 of a comparator U13. The other end of the resistor RG1 is connected to the negative electrode terminal of the electrolytic capacitor C65, the other end of the capacitor C61, pins 2 and 4 of the comparator U13, and one end of a capacitor C60, and then grounded. Pin 5 of the comparator U13 is connected to the other end of the capacitor C60 and then outputs a signal to the A / D conversion module. The positive electrode terminal of the diode D21 is connected to pin 8 of the relay J13 and then connected to the collector terminal of a triode Q21. The emitter of the triode Q21 is grounded. The base of the triode Q21 is connected to one end of a resistor R117, and the other end of the resistor R117 is connected to a 10V power supply. Pin 6 of the relay J13 is connected to the positive electrode terminal of a diode D25. The negative electrode terminal of the diode D25 is connected to the negative electrode terminal of a diode D26 and then connected to port C. The positive electrode terminal of the diode D26 is connected to pin 6 of a relay J5. Pin 1 of the relay J5 is connected to the negative electrode terminal of a diode D16. The positive electrode terminal of the diode D16 is connected to pin 8 of the relay J5 and the collector of a triode Q28. The emitter of the triode Q28 is grounded. The base of the triode Q28 is connected to one end of a resistor R9, and the other end of the resistor R9 is connected to a 10V power supply.

6. The emergency stop module test tooling according to claim 1, characterized in that: The boost detection unit includes a triode Q49. The emitter of the triode Q49 is connected to one end of a resistor R261 and then connected to the power supply terminal DVCC. The other end of the resistor R261 is connected to one end of a resistor R258 and the collector of a triode Q50. The other end of the resistor R258 is connected to the base of the triode Q49. The base of the triode Q50 is connected to one end of a resistor R260. The other end of the resistor R260 is connected to interface A4. The emitter of the triode Q50 is connected to the emitter of a triode Q51, one end of a resistor R264, and one end of a resistor R263, and then grounded to GND. The collector of the triode Q49 is connected to one end of a resistor R256. The other end of the resistor R256 is connected to one end of a resistor R262. The other end of the resistor R262 is connected to the base of the triode Q51. The collector of the triode Q51 is connected to pin 8 of a relay J21 and the positive electrode of a diode D49. The negative electrode of the diode D49 is connected to pin 1 of the relay J21 and then connected to a 5V power supply. The other ends of the resistor R264 and the resistor R263 are connected and then connected to pin 5 of the relay J21. The pin 6 of the switch outputs a signal.

7. The emergency stop module test tooling according to claim 1, characterized in that: The step-down detection unit includes operational amplifier U26.

1. The non-inverting input terminal of operational amplifier U26.1 is connected to one end of resistor R256 and one end of resistor R252. The other end of resistor R252 is connected to power supply DVCC. The other end of resistor R256 is connected to one end of resistor R255 and the negative power supply terminal of operational amplifier U26.1, and then grounded to GND. The inverting input terminal of operational amplifier U26.1 is connected to the other end of resistor R255 and then connected to terminal A3. The positive power supply terminal of operational amplifier U26.1 is connected to one end of capacitor C92 and then connected to 3.3V power supply. The other end of capacitor C92 is grounded to GND. The output terminal of operational amplifier U26.1 is connected to one end of resistor R254, the positive terminal of diode D54, the non-inverting input terminal of operational amplifier U23.1, and one end of resistor R41. The other end of resistor R254 and the negative terminal of diode D54 are connected to the positive power supply terminal of operational amplifier U23.1 and then connected to 3.3V power supply. The inverting input terminal of operational amplifier U23.1 is connected to the output terminal of operational amplifier U23.

1. The output terminal of operational amplifier U23.1 is also connected to pin 4 of relay J17. The negative power supply terminal of operational amplifier U23.1 is connected to pin 2 of relay J17. Pin 5 of relay J17 is connected to the emitter of triode Q31 and then grounded to GND. The collector of triode Q31 is connected to pin 8 of the switch and the positive electrode of diode D27. The base of triode Q31 is connected to one end of resistor R51. The other end of resistor R51 is connected to selection switch SELECT. The negative electrode of diode D27 is connected to pin 1 of relay J17 and one end of resistor R49. The other end of resistor R49 is connected to the base of triode Q32. The emitter of triode Q32 is grounded. The collector of triode Q32 is connected to pin 8 of relay J18. Pin 1 of relay J18 is connected to 5V power supply. Pin 5 of relay J18 is connected to pin 6 of relay J17. Pin 6 of relay J18 outputs a signal to the A / D conversion module. Pin 7 of relay J18 is connected to one end of resistor R55. The other end of resistor R55 is connected to one end of resistor R88 and the collector of triode Q34. The emitter of triode Q34 is connected to the other end of resistor R88 and then grounded to GND. The base of triode Q34 is connected to one end of resistor R89. The other end of resistor R89 is connected to switch ON / OFF. Pin 4 of relay J18 is connected to the other end of resistor R41 and the collector of triode Q33. The emitter of triode Q33 is grounded to GND. The base of triode Q33 is connected to one end of resistor R40. The other end of resistor R40 is connected to switch ON / OFF.

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