Equipment monitoring system

Abstract

The invention provides an equipment monitoring system. The equipment monitoring system comprises a grounding monitoring module, a host module and a point inspection module, the monitoring end of the grounding monitoring module is connected with target equipment, the grounding monitoring module is connected with the host module based on wireless communication, and the point inspection module is connected with the host module based on wireless communication; wherein the grounding monitoring module monitors the grounding state of target equipment and sends a monitoring result to the host module; the host module collects the monitoring result of each target device sent by the grounding monitoring module, and is also used for sending a point inspection signal to the point inspection module; and after receiving the spot inspection signal, the spot inspection module performs spot inspection operation on the target equipment and sends spot inspection state information obtained by the spot inspection operation to the host module. Different modules are set to communicate in a wireless communication mode, so that wiring can be reduced, and the maintenance cost is reduced; and the integrated point inspection module enables point inspection of the target equipment to be synchronously realized, so that the use scene of the system is expanded.

Description

Technical Field

[0001] The present invention relates to the field of equipment safety, and in particular to an equipment monitoring system. Background Art

[0002] In the prior art, an ESD (Electro-Static discharge) device is usually provided to monitor the grounding status of the equipment. However, in scenarios with a large number of devices, a large amount of wiring is required during installation and implementation, which makes the construction difficult and the maintenance cost high. At the same time, the existing device can only realize basic grounding monitoring functions and cannot adapt to the needs of more scenarios. Summary of the invention

[0003] The main purpose of the present invention is to propose an equipment monitoring system, aiming to solve the problems of multiple grounding status monitoring wiring and insufficient application scenarios in the prior art.

[0004] To achieve the above object, the present invention provides an equipment monitoring system, which includes a grounding monitoring module, a host module and a spot inspection module; the monitoring end of the grounding monitoring module is connected to the grounding end of the target device, the grounding monitoring module is connected to the host module based on wireless communication, and the spot inspection module is connected to the host module based on wireless communication; wherein:

[0005] The grounding monitoring module is used to monitor the grounding status of the target device and send the monitoring result to the host module;

[0006] The host module is used to collect the monitoring results of each target device sent by the ground monitoring module, and is also used to send a spot inspection signal to the spot inspection module;

[0007] The spot inspection module is used to perform a spot inspection operation on the target device after receiving the spot inspection signal, and send the spot inspection status information obtained by the spot inspection operation to the host module.

[0008] Optionally, the grounding monitoring module includes a main control unit, a first communication unit, and a plurality of grounding monitoring units, each of the grounding monitoring units being connected to a corresponding target device, wherein:

[0009] The monitoring end of the ground monitoring unit is connected to the target device, the output end of each ground monitoring unit is correspondingly connected to a monitoring end of the main control unit, and the communication end of the main control unit is connected to the first communication unit.

[0010] Optionally, the ground monitoring unit includes a first resistor and a second resistor, wherein:

[0011] The first end of the first resistor is connected to the ground terminal of the target device, the second end of the first resistor is connected to the power supply through the second resistor, and the second end of the first resistor is also connected to the monitoring terminal of the main control unit.

[0012] Optionally, the ground monitoring unit further includes an indicating subunit, and the indicating subunit includes a first triode, a first light emitting diode, a third resistor and a fourth resistor; wherein:

[0013] The base of the first transistor is connected to the second end of the first resistor through the third resistor, the collector of the first transistor is grounded, the emitter of the first transistor is connected to the cathode of the first light-emitting diode, and the anode of the first light-emitting diode is connected to the power supply through the fourth resistor.

[0014] Optionally, the grounding monitoring module includes a first communication unit, and the host module includes a second communication unit; wherein:

[0015] The first communication unit communicates with the second communication unit via long-range radio.

[0016] Optionally, there are multiple grounding monitoring modules; wherein:

[0017] The channel of the long-distance radio includes a plurality of sub-channels, and a plurality of the ground monitoring modules communicate with the host module through one of the sub-channels.

[0018] Optionally, the spot inspection module includes a spot inspection instruction unit and a spot inspection execution unit; the spot inspection instruction unit is set corresponding to the target device, and the spot inspection instruction unit and the spot inspection execution unit are respectively connected to the host module for communication; wherein:

[0019] The host module is used to periodically send an initialization signal to the spot inspection indicating unit, and send a spot inspection signal to the spot inspection executing unit;

[0020] The inspection indication unit is used to convert the indication state corresponding to the target device into a state to be inspected after receiving the initialization signal;

[0021] The spot check execution unit is used to perform a spot check operation on the target device after receiving the spot check signal, and after the spot check operation is completed, trigger the spot check indication unit to convert the indication state corresponding to the target device to the state of having been spot checked.

[0022] Optionally, the inspection execution unit includes a smart factory auxiliary center and a plurality of inspection auxiliary devices, the smart factory auxiliary center is communicatively connected to the host module, and the smart factory auxiliary center is communicatively connected to the inspection auxiliary devices; wherein:

[0023] The smart factory auxiliary center is used to receive the inspection signal sent by the host module, and send a start signal to the corresponding inspection auxiliary device according to the inspection signal;

[0024] The spot inspection assistance device is used to perform spot inspection assistance operations for the user after receiving the start signal.

[0025] Optionally, the inspection execution unit includes a robot center and a plurality of inspection robots; the robot center is communicatively connected to the host module, and the robot center is communicatively connected to the inspection robots; wherein:

[0026] The robot center is used to receive the inspection signal sent by the host module and send the inspection signal to the corresponding inspection robot;

[0027] The inspection robot is used to perform an inspection operation on the target device corresponding to the inspection signal after receiving the inspection signal.

[0028] Optionally, the host module includes a host unit, a second communication unit and an assignment unit; the second communication unit is connected to the first communication unit of the grounding monitoring module, and the main control unit is connected to the second communication unit and the assignment unit respectively; wherein:

[0029] The host unit is used to communicate with the grounding monitoring module through the second communication unit;

[0030] The host unit is further used to send a spot inspection signal to the spot inspection execution unit through the assignment unit.

[0031] The present invention proposes an equipment monitoring system, which includes a grounding monitoring module, a host module and a spot inspection module; the monitoring end of the grounding monitoring module is connected to the grounding end of the target device, the grounding monitoring module is connected to the host module based on wireless communication, and the spot inspection module is connected to the host module based on wireless communication; wherein: the grounding monitoring module is used to monitor the grounding state of the target device and send the monitoring result to the host module; the host module is used to collect the monitoring results of each target device sent by the grounding monitoring module, and is also used to send a spot inspection signal to the spot inspection module; the spot inspection module is used to perform a spot inspection operation on the target device after receiving the spot inspection signal, and send the spot inspection status information obtained by the spot inspection operation to the host module. By setting up communication between different modules through wireless communication, it is possible to reduce wiring and maintenance costs; at the same time, the integrated spot inspection module enables the spot inspection of the target device to be realized synchronously, which expands the use scenario of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 A functional module diagram of an embodiment of a device monitoring system of the present invention;

[0034] Figure 2 It is a detailed module diagram of the equipment monitoring system of the present invention;

[0035] Figure 3 It is a structural schematic diagram of a grounding monitoring module in the equipment monitoring system of the present invention;

[0036] Figure 4 It is a structural schematic diagram of the power supply unit and the power indication unit of the grounding monitoring module in the equipment monitoring system of the present invention.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0038] Description of Figure Numbers:

[0039] Label name Label name 100 Ground monitoring module R1～8 The first to eighth resistors 110 Main control unit C1～2 First to second capacitors 111 Main control chip LED1~2 First to second light emitting diodes 112 Warning subunit D1～2 The first and second diodes 120 First communication unit Q1～2 The first and second transistors 130 Ground monitoring unit MK1 speaker 140 Main control protection subunit Z1 The first Zener diode 150 Voltage regulator unit F1 fuse 160 Indicator unit 240 Visualization Unit 170 Power supply unit 300 Inspection module 171 Voltage regulator chip 310 Inspection indication unit 180 Power indicator unit 320 Inspection execution unit 200 Host Module 321 Smart Factory Support Center 210 Second communication unit 322 Inspection auxiliary equipment 220 Main unit 323 Robotics Center 230 Assignment Unit 324 Inspection Robot DETAILED DESCRIPTION

[0040] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] The present invention provides a device monitoring system, see Figure 1 , Figure 1 This is a functional module diagram of an embodiment of the equipment monitoring system of the present invention. In this embodiment, the equipment monitoring system includes a grounding monitoring module 100, a host module 200 and a spot inspection module 300; the monitoring end of the grounding monitoring module 100 is connected to the grounding end of the target device, the grounding monitoring module 100 is connected to the host module 200 based on wireless communication, and the spot inspection module 300 is connected to the host module 200 based on wireless communication; wherein:

[0045] The grounding monitoring module 100 is used to monitor the grounding status of the target device and send the monitoring result to the host module 200;

[0046] The host module 200 is used to collect the monitoring results of each target device sent by the ground monitoring module 100, and is also used to send a spot inspection signal to the spot inspection module 300;

[0047] The spot inspection module 300 is used to perform a spot inspection operation on the target device after receiving the spot inspection signal, and send the spot inspection status information obtained by the spot inspection operation to the host module 200 .

[0048] The target device is the object of monitoring. The grounding terminal of the target device is grounded under normal circumstances. If the grounding terminal of the target device is disconnected from the ground, the grounding of the target device is abnormal. It can be understood that the number of target devices monitored by the device monitoring system can be one or more.

[0049] The ground monitoring module 100 monitors the ground terminal voltage of the target device, obtains a monitoring result, and sends the monitoring result to the host module 200 .

[0050] The host module 200 integrates the monitoring results sent by the grounding monitoring module 100 to monitor the grounding status of each target device within the reach of the grounding monitoring system; through real-time monitoring of the grounding status of the target device, the system can issue an early warning before an abnormal state occurs, thereby allowing the factory to take preventive maintenance measures to avoid production interruptions and equipment damage.

[0051] The inspection operation is to check the specific target equipment to ensure the normal operation of the target equipment. It should be noted that the inspection operation is not only to check the grounding status of the target equipment, but also to check the overall operation, functions, settings, etc. of the target equipment.

[0052] The host module 200 performs inspection operations on the target device by controlling the inspection module 300, thereby realizing system-level inspection planning. Compared with the prior art method of manually performing one-by-one inspections, this improves inspection efficiency and avoids errors and omissions that occur in manual inspections.

[0053] The spot check signal is used to trigger the spot check module 300 to perform a spot check operation.

[0054] The inspection status information is generated by the inspection status of the target device; the inspection status information includes but is not limited to the target device identification, inspection result, whether it is faulty, and the fault type.

[0055] It should be noted that, in the present embodiment, the grounding monitoring module 100 and the spot inspection module 300 are operated separately and simultaneously; for the grounding monitoring function, the grounding monitoring module 100 monitors the grounding status of the target device in real time, and sends the monitoring results to the host module 200; for the spot inspection function, the host module 200 triggers a spot inspection signal based on manual operation or a specified plan, and sends the spot inspection signal to the spot inspection module 300 to trigger the spot inspection operation on the target device.

[0056] This embodiment arranges different modules to communicate with each other through wireless communication, so as to reduce wiring and lower maintenance costs; at the same time, the integrated inspection module 300 enables synchronous inspection of the target device, thus expanding the use scenarios of the system.

[0057] Further, see Figure 2 The grounding monitoring module 100 includes a main control unit 110, a first communication unit 120 and a plurality of grounding monitoring units 130, each of the grounding monitoring units 130 is connected to a corresponding target device, wherein:

[0058] The monitoring end of the ground monitoring unit 130 is connected to the target device, the output end of each ground monitoring unit 130 is correspondingly connected to a monitoring end of the main control unit 110 , and the communication end of the main control unit 110 is connected to the first communication unit 120 .

[0059] The grounding monitoring unit 130 is used to monitor the grounding status of the connected target device. In this embodiment, multiple grounding monitoring units 130 are provided, and different grounding monitoring units 130 are connected to different target devices, that is, one grounding monitoring module 100 can monitor the grounding status of multiple target devices at the same time.

[0060] The first communication unit 120 is used to communicate with the host module 200; the type and structure of the first communication unit 120 can be set based on actual needs, such as LoRa, WiFi, Bluetooth, etc.

[0061] Furthermore, the ground monitoring unit 130 includes a first resistor R1 and a second resistor R2, wherein:

[0062] The first end of the first resistor R1 is connected to the ground terminal of the target device, the second end of the first resistor R1 is connected to the power supply through the second resistor R2, and the second end of the first resistor R1 is also connected to the monitoring terminal of the main control unit 110.

[0063] When the ground terminal of the target device is normally grounded, the voltage output by the power supply passes through the first resistor R1 and the second resistor R2 to the ground to form a loop, and the voltage output by the power supply is divided by the first resistor R1 and the second resistor R2, and the voltage obtained by the voltage division is output to the monitoring terminal of the main control unit 110;

[0064] When the ground terminal of the target device is disconnected from the ground, the branch where the second resistor R2 is located cannot form a loop, and the voltage output by the power supply passes through the first resistor R1 and is output to the monitoring terminal of the main control unit 110 .

[0065] That is, the voltage signal output from the second end of the first resistor R1 to the monitoring end of the main control unit 110 is the monitoring signal; when the grounding end of the target device is normally grounded, the monitoring end of the main control unit 110 receives the voltage of the divided power supply, and when the grounding end of the target device is disconnected from the ground, the monitoring end of the main control unit 110 receives the voltage of the power supply without voltage division; therefore, there are significant differences in the voltages received by the main control unit 110 under different grounding end states of the target device, and therefore, the main control unit 110 can accurately determine the grounding end state of the target device based on the voltage received by the monitoring end.

[0066] In actual applications, the voltage value received by the monitoring end of the main control unit 110 under different grounding terminal states of the target device can be determined in advance based on experiments and stored. In subsequent applications, the grounding terminal state of the target device is determined based on comparing the stored voltage value with the voltage value actually received by the monitoring end.

[0067] It should be noted that the power supply is a module in the circuit that can provide voltage. It can be a module that originally powers the circuit, or it can be a power supply module specially set up for ground monitoring. The specific value of the voltage output by the power supply can be set based on actual needs, such as 5V.

[0068] It can be understood that the ratio between the first resistor R1 and the second resistor R2 determines the degree of voltage division of the power supply voltage, which can be specifically set based on actual needs.

[0069] In this embodiment, the voltage division function is realized by setting the first resistor R1 and the second resistor R2. At the same time, different voltage signals can be output to the main control unit 110 based on different ground terminal states of the target device.

[0070] Further, see Figure 3 The ground monitoring unit 130 further includes a main control protection subunit 140 and a voltage stabilizing subunit 150; the main control protection subunit 140 is connected between the main control unit 110 and the first resistor R1, and the voltage stabilizing subunit 150 is connected to the second end of the first resistor R1.

[0071] It can be understood that the monitoring end of the main control unit 110 needs to receive the detection signal under different grounding end states of the target device, and the voltage of the power supply of the target device is output to the main control unit 110 after voltage division or without voltage division under different grounding end states. The voltage difference between these two cases is large. At the same time, voltage fluctuations may also cause voltage mutations. The voltage of the monitoring signal received by the main control unit 110 may exceed the supported voltage range. Therefore, in order to prevent the monitoring end of the main control unit 110 from being damaged by high voltage, a main control protection subunit 140 and a voltage stabilizing subunit 150 are set in this embodiment; wherein, the main control protection subunit 140 is used to limit the monitoring end voltage of the main control unit 110, and the voltage stabilizing subunit 150 is used to stabilize the monitoring signal to avoid mutations, thereby greatly improving the safety of the main control unit 110.

[0072] Furthermore, the main control protection subunit 140 includes a third resistor R3, a first diode D1 and a second diode D2; wherein:

[0073] The third resistor R3 is connected between the second end of the first resistor R1 and the main control unit 110, the anode of the first diode D1 is connected to the second end of the first resistor R1, the cathode of the first diode D1 is connected to the power supply, the cathode of the second diode D2 is connected to the second end of the first resistor R1, and the anode of the second diode D2 is grounded.

[0074] The first diode D1 clamps the positive voltage so that the voltage at the monitoring terminal of the main control unit 110 is lower than the voltage of the power supply, thereby preventing the main control unit 110 from being affected by the high voltage; the second diode D2 clamps the negative voltage so that the voltage at the monitoring terminal of the main control unit 110 is higher than the ground voltage. It should be noted that the clamping of the diode also needs to consider its own voltage drop, and the specific settings are not described in detail.

[0075] The third resistor R3 is used to reduce the voltage flowing to the monitoring terminal of the main control unit 110; the specific resistance value of the third resistor R3 can be set based on actual needs, such as 1KΩ.

[0076] Furthermore, the voltage stabilizing subunit 150 includes a first capacitor C1; wherein:

[0077] A first end of the first capacitor C1 is connected to a second end of the first resistor R1 , and a second end of the first capacitor C1 is grounded.

[0078] The first capacitor C1 is used to remove high-frequency noise on the signal line and smooth the detection signal output by the voltage divider module, thereby improving the stability of the circuit.

[0079] Furthermore, the ground monitoring unit 130 further includes an indicating subunit 160, and the indicating subunit 160 includes a first transistor Q1, a first light emitting diode LED1, a third resistor R3 and a fourth resistor R4; wherein:

[0080] The base of the first transistor Q1 is connected to the second end of the first resistor R1 through the third resistor R3, the collector of the first transistor Q1 is grounded, the emitter of the first transistor Q1 is connected to the cathode of the first light-emitting diode LED1, and the anode of the first light-emitting diode LED1 is connected to the power supply through the fourth resistor R4.

[0081] It can be understood that in order to more intuitively and conveniently understand the grounding terminal status of the target device, an indication subunit 160 is provided in this embodiment, and the indication subunit 160 performs an indication operation based on the monitoring signal to indicate the grounding terminal status of the target device.

[0082] When the ground terminal of the target device is normally grounded, the first resistor R1 and the second resistor R2 divide the voltage output by the power supply. At this time, the voltage value output by the second end of the first resistor R1 is lower than the conduction value of the base of the first transistor Q1, the first transistor Q1 is turned off, the voltage across the first light-emitting diode LED1 does not meet the conduction condition, and the first light-emitting diode LED1 does not emit light;

[0083] When the ground terminal of the target device is disconnected from the ground, the voltage output by the power supply is not divided by the second resistor R2, but is directly output through the first resistor R1. At this time, the voltage value output by the second end of the first resistor R1 is greater than the conduction value of the base of the first transistor Q1, the first transistor Q1 is turned on, the positive electrode of the first light-emitting diode LED1 is connected to the power supply through the fourth resistor R4, the negative electrode of the first light-emitting diode LED1 is grounded through the first transistor Q1, the voltage across the two ends of the first light-emitting diode LED1 meets the conduction condition, and the first light-emitting diode LED1 emits light.

[0084] The specific type of the first transistor Q1 can be set based on actual needs; for example, the first transistor Q1 in this embodiment is an NPN transistor.

[0085] It should be noted that the base conduction voltage of the transistor is the voltage value output by the second end of the first resistor R1. Therefore, when determining the ratio of the first resistor R1 to the second resistor R2, it is necessary to ensure that when the first resistor R1 and the second resistor R2 divide the voltage output by the power supply, the first transistor Q1 cannot be turned on, and when the first resistor R1 directly outputs the voltage of the power supply, the first transistor Q1 can be turned on.

[0086] The third resistor R3 is used to reduce the voltage value transmitted to the first transistor Q1 to prevent the first transistor Q1 from being damaged by excessive voltage.

[0087] Furthermore, the main control unit 110 includes a main control chip 111 and a warning subunit 112; the monitoring end of the main control chip 111 is connected to the second end of the first resistor R1, the communication end of the main control chip 111 is connected to the first communication unit 120, and the output end of the main control chip 111 is connected to the warning subunit 112.

[0088] The warning subunit 112 is used to perform a warning operation when a grounding anomaly of the target device is detected; the specific type of warning operation can be set based on actual needs, such as playing alarm audio, video, lighting an alarm, reporting alarm information, etc.

[0089] Furthermore, the warning subunit 112 includes a second transistor Q2, a speaker MK1, a second transistor Q2, a fifth resistor R5, a sixth resistor R6 and a seventh resistor R7; wherein:

[0090] The control end of the second transistor Q2 is connected to the output end of the main control chip 111 through the fifth resistor R5, and the control end of the second transistor Q2 is also grounded through the sixth resistor R6. The input end of the second transistor Q2 is connected to the power supply through the seventh resistor R7. The speaker MK1, the second transistor Q2 and the seventh resistor R7 are connected in parallel, and the input end of the second transistor Q2 is grounded.

[0091] When the ground terminal of the target device is normally grounded, the output terminal of the main control chip 111 outputs a low level, and the second transistor Q2 is turned off. At this time, the line where the speaker MK1 and the second transistor Q2 are located cannot form a loop, and the speaker MK1 and the second transistor Q2 do not work;

[0092] When the ground terminal of the target device is disconnected from the ground, the output terminal of the main control chip 111 outputs a high level, and the second transistor Q2 is turned on. At this time, the power supply voltage is connected to the ground through the speaker MK1, the second transistor Q2, and the second transistor Q2. The speaker MK1 and the second transistor Q2 work and an alarm is issued.

[0093] The specific type of the second transistor Q2 can be set based on actual needs; for example, the second transistor Q2 in this embodiment is an NPN transistor.

[0094] See also Figure 4 , the ground monitoring module 100 further includes a power supply unit 170; the power supply unit 170 includes a fuse F1, a first voltage stabilizing diode Z1, a second capacitor C2 and a voltage stabilizing chip 171;

[0095] The first end of the fuse F1 is connected to the positive power supply end, the second end of the fuse F1 is connected to the input end of the voltage regulator chip 171, and the input end of the voltage regulator chip 171 is also reversely connected to the negative power supply end through the first voltage regulator diode Z1; the second capacitor C2 is connected in parallel with the first voltage regulator diode Z1, and the output end of the voltage regulator chip 171 serves as the power supply end; the external adapter is connected through the positive power supply end and the negative power supply end.

[0096] The fuse F1 is used for circuit protection. When the current exceeds the load of the fuse F1, the fuse F1 is disconnected. The first voltage stabilizing diode Z1 and the second capacitor C2 are used for voltage stabilization.

[0097] It should be noted that different power supply units 170 may be provided according to different voltages required by actual devices.

[0098] The ground monitoring module 100 further includes a power indication unit 180, and the power indication unit 180 includes a second light emitting diode LED2 and an eighth resistor R8;

[0099] The anode of the second light emitting diode LED2 is connected to the power supply through the eighth resistor R8; the cathode of the second light emitting diode LED2 is grounded.

[0100] When the power supply is powered on, the second light emitting diode LED2 is turned on and emits light; when the power supply has no voltage supplied, the second light emitting diode LED2 is turned off and does not emit light.

[0101] The following is based on Figure 2 The overall implementation principle of the ground detection circuit of this application is explained:

[0102] Take the case where the resistance of the first resistor R1 is 1 kΩ, the resistance of the second resistor R2 is 100 Ω, the resistance of the third resistor R3 is 1.5 kΩ, and the voltage of the power supply is 5 V as an example for explanation:

[0103] When the ground terminal of the target device is normally grounded, the voltage of the power supply is connected to the ground through the first resistor R1 and the second resistor R2 to form a first loop. At the same time, the voltage of the power supply is connected to the ground through the first resistor R1, the third resistor R3, and the first switch tube to form a second loop. The first loop is connected in parallel with the second loop. Since the resistance of the second loop is much larger than that of the first loop, the equivalent resistance of the circuit after parallel connection should be smaller than the resistance of the third resistor R3 and larger than the resistance of the second resistor R2. The voltage of the power supply is divided by the first resistor R1 and the second resistor R2. The voltage at the second end of the first resistor R1 is (100 / (100+1000))×5=0.4545V, and the voltage at the monitoring end of the main control unit 110 is 0.4545V, confirming that the target device is normally grounded. At this time, the second switch tube is disconnected, and the first light-emitting diode LED1 does not emit light.

[0104] When the ground terminal of the target device is disconnected from the ground, the first circuit is disconnected from the ground, the resistance is infinite, and the voltage of the power supply forms a second circuit through the first resistor R1, the third resistor R3, and the first switch tube to the ground; the voltage at the second end of the first resistor R1 is about 3.2V, and the voltage at the monitoring end of the main control unit 110 is 3.2V, which determines that the target device is grounded abnormally; at this time, the second switch tube is turned on, and the first light-emitting diode LED1 emits light.

[0105] Further, the ground monitoring module 100 includes a first communication unit 120, and the host module 200 includes a second communication unit 210; wherein:

[0106] The first communication unit 120 communicates with the second communication unit 210 via long-distance radio.

[0107] In this embodiment, the communication between the grounding monitoring module 100 and the host module 200 is realized by LoRa (Long Range Radio); it should be noted that in order to realize the communication of LoRa, a software serial port can be created by a program; the serial communication protocol is simulated on any input and output GPIO pin by means of the software serial port, so that wireless communication can be realized even when the hardware serial port resources are already used by other devices. LoRa provides long-distance, low-power communication capabilities, which can ensure that the grounding status of each target device in the factory can be transmitted to the host module 200 in real time and accurately, greatly reducing the false alarm or missed alarm rate caused by communication delay or interruption.

[0108] Furthermore, there are multiple grounding monitoring modules 100; wherein:

[0109] The channel of the long-distance radio includes a plurality of sub-channels, and a plurality of the ground monitoring modules 100 communicate with the host module 200 through one of the sub-channels.

[0110] By expanding the number of ground monitoring modules 100 , it is possible to support ground monitoring of a greater number of target devices.

[0111] It is understandable that as the number of grounding monitoring modules 100 increases, the communication pressure will also increase. If multiple grounding monitoring modules 100 communicate with the host module 200 at the same time, it is easy to cause interference between each other; therefore, in this embodiment, the LoRa channel is divided into multiple sub-channels, and the grounding monitoring module 100 is assigned to the corresponding sub-channel for transmission, so as to avoid mutual interference; the number of specific sub-channels can be set based on actual needs; in specific implementation, the sub-channels used by the grounding monitoring module 100 can be associated in advance, so that the grounding monitoring module 100 can communicate based on fixed sub-channels; or a limit on the number of communications is set for each sub-channel. When the number of grounding monitoring modules 100 using the sub-channel reaches the limit on communication, the next sub-channel is automatically switched to provide it to the subsequent grounding monitoring module 100 for use, and so on.

[0112] When monitoring the grounding status of the target device; if the grounding monitoring module 100 detects that the target device has a grounding abnormality, the monitoring result can be reported to the host module 200 in real time; the host module 200 can also actively obtain the monitoring result, such as setting a periodic timing query plan. When the timing arrives, the host module 200 sends an inquiry instruction to each grounding monitoring module 100. After receiving the inquiry instruction, each grounding monitoring module 100 reports the monitoring result based on the real-time grounding status of the target device. If there is a grounding monitoring module 100 that has not reported the monitoring result, it is considered that the grounding monitoring module 100 is offline, and relevant personnel can be notified to check it.

[0113] Further, see Figure 4 , the inspection module 300 includes an inspection instruction unit 310 and an inspection execution unit 320; the inspection instruction unit 310 is set corresponding to the target device, and the inspection instruction unit 310 and the inspection execution unit 320 are respectively connected to the host module 200 for communication; wherein:

[0114] The host module 200 is used to periodically send an initialization signal to the spot check indicating unit 310 and send a spot check signal to the spot check executing unit 320;

[0115] The inspection indication unit 310 is used to convert the indication state corresponding to the target device to pending inspection after receiving the initialization signal;

[0116] The spot check execution unit 320 is used to perform a spot check operation on the target device after receiving the spot check signal, and after the spot check operation is completed, trigger the spot check indication unit 310 to convert the indication status corresponding to the target device to the status of having been spot checked.

[0117] The inspection indication unit 310 is used to indicate the inspection status of the corresponding target device; when the inspection indication unit 310 is in the initialization state, it indicates that the target device is to be inspected, that is, it has not been inspected. In this state, it means that an inspection operation needs to be performed on the target device; after the inspection operation is performed on the target device, the state of the inspection indication unit 310 is changed to the inspected state.

[0118] The display mode of different states of the inspection indication unit 310 can be set based on actual needs, such as setting an indicator light. When it is in the uninspected state, the indicator light is red, and when it is in the inspected state, the indicator light is green.

[0119] The triggering method for converting the inspection indication unit 310 from the uninspected state to the inspected state can be set based on actual needs; for example, a completion button can be set in the inspection indication unit 310, and after the relevant personnel complete the inspection of the target device, they can convert the state of the inspection indication unit 310 to the inspected state through the completion button; a sensing device, such as NFC, a QR code, etc., can also be set in the inspection indication unit 310. After the inspection is completed, the state of the inspection indication unit 310 can be converted to the inspected state through NFC sensing, scanning of a QR code, etc.

[0120] The inspection execution unit 320 is used to perform inspection operations on the target device. In the prior art, the target device is usually inspected by pure manual methods. However, this method has the problem of inspection errors. At the same time, the device may need to remain in operation for 24 hours, so the labor cost is high. In this embodiment, the inspection execution unit 320 is set to perform the inspection operation, which can have higher accuracy than the pure manual method and reduce the labor cost.

[0121] Furthermore, the inspection execution unit 320 includes a smart factory auxiliary center 321 and a plurality of inspection auxiliary devices 322, wherein the smart factory auxiliary center 321 is connected in communication with the host module 200, and the smart factory auxiliary center 321 is connected in communication with the inspection auxiliary devices 322; wherein:

[0122] The smart factory auxiliary center 321 is used to receive the inspection signal sent by the host module 200, and send a start signal to the corresponding inspection auxiliary device 322 according to the inspection signal;

[0123] The inspection assistance device 322 is used to perform inspection assistance operations for the user after receiving the start signal.

[0124] The smart factory auxiliary center 321 serves as the management end of the inspection auxiliary equipment 322; the smart factory auxiliary center 321 can be seamlessly integrated with other intelligent systems, such as MES, ERP, SCM, AR, etc., to achieve data sharing and collaboration. Through a unified data platform, factories can manage production processes more intelligently, optimize resource allocation, and improve production efficiency.

[0125] The inspection auxiliary device 322 is a device for assisting the inspection personnel; the inspection auxiliary device 322 mainly serves to prompt the inspection content and inspection operations; the specific type of the inspection auxiliary device 322 can be set based on actual needs, such as AR devices, smart watches, etc.; it can be understood that based on the specific type, the prompt method of the inspection auxiliary device 322 may be different. For example, for AR devices, corresponding checkpoints and scanning trajectories can be set based on the items that need to be inspected on the target device. The AR device displays the checkpoints and scanning trajectories at the corresponding positions of the target device in the captured image, and the inspection personnel inspect the target device according to the checkpoints and scanning trajectories; for smart watches, the inspection content can be displayed on the screen, and the inspection personnel perform inspection operations based on the inspection content.

[0126] The inspection signal is used to indicate the need for inspection of the target device; the inspection signal includes the target device that needs to be inspected; after receiving the inspection signal, the smart factory auxiliary center 321 determines the corresponding inspection auxiliary device 322 based on the target device, and sends a start signal to the inspection auxiliary device 322.

[0127] After receiving the start signal, the inspection auxiliary device 322 performs inspection assistance; after the inspection is completed, the inspection auxiliary device 322 returns a completion signal to the smart factory auxiliary center 321, and the completion signal includes the device information of the inspection auxiliary device 322 and the inspection result; the smart factory auxiliary center 321 counts the completion signals returned by all the inspection auxiliary devices 322, obtains the completion result after statistics, and sends it to the host module 200; the host module 200 understands the inspection status of each target device based on the completion result returned by the smart factory auxiliary center 321.

[0128] Furthermore, the inspection execution unit 320 includes a robot center 323 and a plurality of inspection robots 324; the robot center 323 is connected in communication with the host module 200, and the robot center 323 is connected in communication with the inspection robots 324; wherein:

[0129] The robot center 323 is used to receive the inspection signal sent by the host module 200 and send the inspection signal to the corresponding inspection robot 324;

[0130] The inspection robot 324 is used to perform an inspection operation on the target device corresponding to the inspection signal after receiving the inspection signal.

[0131] The inspection auxiliary equipment 322 still requires manual inspection operations. In order to further achieve automation and reduce labor costs, a robot center 323 and an inspection robot 324 are set in this embodiment.

[0132] The robot center 323 serves as a management terminal for the inspection robot 324 .

[0133] The inspection robot 324 is a robot that automatically performs inspections on target devices; the specific settings of the inspection robot 324 can be selected based on actual needs.

[0134] The inspection signal is used to indicate the need for inspection of the target device; the inspection signal contains the target device that needs to be inspected; the inspection signal is used to indicate the need for inspection of the target device; the inspection signal contains the target device that needs to be inspected; after receiving the inspection signal, the robot center 323 determines the corresponding inspection robot 324 according to the target device, and sends the inspection signal to the inspection robot 324. It can be understood that the inspection robot 324 can move for inspection, so one inspection robot 324 can be responsible for the inspection of multiple target devices; in actual applications, the target device can be partitioned, and each partition is respectively provided with a corresponding inspection robot 324, and the inspection robot 324 performs inspection operations on the target devices in its own partition; after receiving the inspection signal, the inspection robot 324 determines the target device that needs to be inspected in the partition, and plans the inspection route to inspect the target devices in turn.

[0135] When performing spot inspection, the spot inspection robot 324 needs to determine the target device. The spot inspection robot 324 can obtain the information of the target device through the QR code, NFC and other sensing devices set on the spot inspection indication module corresponding to the target device; when confirming that the target device is the target device corresponding to the spot inspection signal, the spot inspection operation is performed on the target device; specifically, when performing spot inspection operations on the target device, the spot inspection items can be sent to the spot inspection robot 324 first, or the spot inspection robot 324 can be taught in advance based on the spot inspection items. The spot inspection robot 324 can realize the spot inspection of the target device through image comparison or manual auxiliary judgment. After the spot inspection operation is completed, the spot inspection result containing the robot information is sent to the robot center 323.

[0136] The robot center 323 counts the inspection results returned by all the inspection robots 324 , obtains the completion results after counting, and sends them to the host module 200 ; the host module 200 understands the inspection status of each target device based on the completion results returned by the robot center 323 .

[0137] It is understandable that for unmanned factories with no lights on, automatic monitoring and early warning of target equipment become particularly important due to the reduction of human intervention. By setting up the inspection robot 324, the system can monitor the operating status of the target equipment 24 hours a day, detect and deal with potential problems in a timely manner, and ensure the stable operation of the production line. At the same time, through linkage with automated equipment, automatic fault isolation and repair can be achieved, further improving the intelligence level of unmanned factories.

[0138] Further, the host module 200 includes a host unit 220, a second communication unit 210 and an assignment unit 230; the second communication unit 210 is connected to the first communication unit 120 of the grounding monitoring module 100, and the main control unit 110 is connected to the second communication unit 210 and the assignment unit 230 respectively; wherein:

[0139] The host unit 220 is used to communicate with the grounding monitoring module 100 through the second communication unit 210;

[0140] The host unit 220 is further configured to send a spot check signal to the spot check execution unit 320 via the assignment unit 230 .

[0141] The host unit 220 serves as the processing center of the equipment monitoring system and is used to collect and process data in the system and to manage and control units within the system.

[0142] The host unit 220 communicates with the grounding monitoring module 100 through the second communication unit 210; the grounding status of the target device is obtained by sending. The host unit 220 and the main control unit 110 of the grounding monitoring module 100 both store their own identity information. After receiving the query instruction sent by the host unit 220, the main control unit 110 verifies the query instruction through the stored identity information. After the verification is passed, the monitoring result is reported to the host unit 220 based on the real-time grounding status of the target device.

[0143] The number of the second communication unit 210 can be one or more, which can be determined based on the number of ground monitoring modules 100; multiple second communication units 210 can be connected to the gateway through the IOT or MES network, and connected to the host unit 220 through the gateway. It can be understood that the second communication unit 210 communicates wirelessly without physical line connection, so the system supports remote monitoring and maintenance functions; even if the factory is located in a remote area or a place that is difficult to access directly, managers and technicians can remotely view the equipment status, receive warning information and perform necessary maintenance operations through mobile devices or computers, which not only improves maintenance efficiency, but also reduces maintenance costs and safety risks.

[0144] The second communication unit 210 may also be connected to the spot inspection instructing unit 310 for communication, thereby achieving data communication with the spot inspection instructing unit 310 .

[0145] The host unit 220 also sends a spot check signal to the spot check execution unit 320 through the assignment unit 230, thereby executing a spot check operation on the target device.

[0146] The large amount of data collected by the host unit 220 can be used to analyze and optimize the production process and provide data support for the factory's decision-making; for example, by analyzing the grounding status data, potential equipment problems or production bottlenecks can be discovered, so that corresponding improvement measures can be taken; or the collected data can be used to establish an important data source for the digital twin factory. By analyzing and simulating relevant data, a more accurate equipment behavior model can be established to provide strong support for production optimization and prediction; or through machine learning and data analysis technology, the working mode and failure rules of the target equipment can be automatically learned, and its own monitoring and early warning algorithms can be continuously optimized. With the passage of time and the accumulation of data, the accuracy and efficiency of the system will continue to improve, providing strong support for the continuous improvement and innovation of smart factories.

[0147] The host module 200 may also include a visualization unit 240; the visualization unit 240 is used to display relevant data in the system; the specific displayed data can be set based on actual needs, such as the number of target devices with normal grounding, the number of target devices with abnormal grounding, the information of target devices with abnormal grounding, the target devices that have not been inspected, the target devices being inspected, the target devices with abnormal inspections, etc.; through the visualization of data, the management personnel can intuitively view the relevant status of each target device, which helps the management personnel to quickly understand the maintenance status of the equipment and make corresponding decisions.

[0148] It should be noted that in this application, the modular structure of the equipment monitoring system can be easily integrated with the factory's existing production management system to achieve data sharing and interaction. At the same time, it also makes the system easy to expand and can add more monitoring points or functions according to the actual needs of the factory.

[0149] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system 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 system. In the absence of further restrictions, an element defined by the sentence "includes a..." does not exclude the presence of other identical elements in the process, method, article or system including the element. The serial numbers of the above-mentioned embodiments of the present invention are for description only and do not represent the advantages and disadvantages of the embodiments.

[0150] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device monitoring system, characterized in that: The equipment monitoring system includes a grounding monitoring module, a host module and a spot inspection module; the monitoring end of the grounding monitoring module is connected to the grounding end of the target equipment, the grounding monitoring module is connected to the host module based on wireless communication, and the spot inspection module is connected to the host module based on wireless communication; wherein: The grounding monitoring module is used to monitor the grounding status of the target device and send the monitoring result to the host module; The host module is used to collect the monitoring results of each target device sent by the ground monitoring module, and is also used to send a spot inspection signal to the spot inspection module; The spot inspection module is used to perform a spot inspection operation on the target device after receiving the spot inspection signal, and send the spot inspection status information obtained by the spot inspection operation to the host module.

2. The equipment monitoring system according to claim 1, characterized in that: The grounding monitoring module includes a main control unit, a first communication unit, and a plurality of grounding monitoring units, each of which is connected to a corresponding target device, wherein: The monitoring end of the ground monitoring unit is connected to the target device, the output end of each ground monitoring unit is correspondingly connected to a monitoring end of the main control unit, and the communication end of the main control unit is connected to the first communication unit.

3. The equipment monitoring system according to claim 2, characterized in that: The ground monitoring unit includes a first resistor and a second resistor, wherein: The first end of the first resistor is connected to the ground terminal of the target device, the second end of the first resistor is connected to the power supply through the second resistor, and the second end of the first resistor is also connected to the monitoring terminal of the main control unit.

4. The equipment monitoring system according to claim 3, characterized in that: The ground monitoring unit further includes an indicating subunit, which includes a first triode, a first light emitting diode, a third resistor and a fourth resistor; wherein: The base of the first transistor is connected to the second end of the first resistor through the third resistor, the collector of the first transistor is grounded, the emitter of the first transistor is connected to the cathode of the first light-emitting diode, and the anode of the first light-emitting diode is connected to the power supply through the fourth resistor.

5. The equipment monitoring system according to claim 1, characterized in that: The ground monitoring module includes a first communication unit, and the host module includes a second communication unit; wherein: The first communication unit communicates with the second communication unit via long-range radio.

6. The equipment monitoring system according to claim 5, characterized in that: The number of the grounding monitoring modules is multiple; wherein: The channel of the long-distance radio includes a plurality of sub-channels, and a plurality of the ground monitoring modules communicate with the host module through one of the sub-channels.

7. The equipment monitoring system according to claim 1, characterized in that: The spot inspection module includes a spot inspection instruction unit and a spot inspection execution unit; the spot inspection instruction unit is set corresponding to the target device, and the spot inspection instruction unit and the spot inspection execution unit are respectively connected to the host module in communication; wherein: The host module is used to periodically send an initialization signal to the spot inspection indicating unit, and send a spot inspection signal to the spot inspection executing unit; The inspection indication unit is used to convert the indication state corresponding to the target device into a state to be inspected after receiving the initialization signal; The spot check execution unit is used to perform a spot check operation on the target device after receiving the spot check signal, and after the spot check operation is completed, trigger the spot check indication unit to convert the indication state corresponding to the target device to the state of having been spot checked.

8. The equipment monitoring system according to claim 7, characterized in that: The inspection execution unit includes a smart factory auxiliary center and a plurality of inspection auxiliary devices, wherein the smart factory auxiliary center is communicatively connected to the host module, and the smart factory auxiliary center is communicatively connected to the inspection auxiliary devices; wherein: The smart factory auxiliary center is used to receive the inspection signal sent by the host module, and send a start signal to the corresponding inspection auxiliary device according to the inspection signal; The spot inspection assistance device is used to perform spot inspection assistance operations for the user after receiving the start signal.

9. The equipment monitoring system according to claim 7, characterized in that: The inspection execution unit includes a robot center and a plurality of inspection robots; the robot center is connected to the host module for communication, and the robot center is connected to the inspection robots for communication; wherein: The robot center is used to receive the inspection signal sent by the host module and send the inspection signal to the corresponding inspection robot; The inspection robot is used to perform an inspection operation on the target device corresponding to the inspection signal after receiving the inspection signal.

10. The equipment monitoring system according to any one of claims 1 to 9, characterized in that: The host module includes a host unit, a second communication unit and an assignment unit; the second communication unit is connected to the first communication unit of the ground monitoring module, and the main control unit is connected to the second communication unit and the assignment unit respectively; wherein: The host unit is used to communicate with the grounding monitoring module through the second communication unit; The host unit is further used to send a spot inspection signal to the spot inspection execution unit through the assignment unit.

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