Remote large-scale information verification system

Abstract

The present application discloses a remote large-scale information verification system, including: each slave controller is connected in series in different signal loops; a master controller is used to remotely control the on and off of the target slave controller in the signal loop according to the first user instruction; the master controller is used to send an information verification instruction to the target slave controller according to the second user instruction; the target slave controller is used to return corresponding response information to the master controller after receiving the information verification instruction, and the response information is used to indicate the connectivity of the target signal loop where the target slave controller is located and / or the response information contains the detection information of the target signal loop where the target slave controller is located. The present application enables the master controller to flexibly control the on and off status of the slave controller contacts through remote communication, and the centralized monitoring and independent and accurate monitoring of the signal loop information can be realized through the information verification instruction, without the need for manual on-site operation, with high reliability and convenience, reducing the risk of misoperation and ensuring safety.

Description

Technical Field

[0001] The present invention relates to the field of monitoring and verification technology, and in particular to a remote large-scale information verification system. Background Art

[0002] In the prior art, there is a lack of dedicated tools for automated information verification, and it is necessary to manually short-circuit the circuit on-site to trigger information to perform various performance checks on, for example, optical fiber cables. This is not intuitive and is highly arbitrary, with complex operations and low efficiency. In addition, due to manual involvement, it is easy to accidentally touch and cause safety problems. Summary of the invention

[0003] Based on this, it is necessary to propose a remote large-scale information verification system to address the technical problems in the existing technology that manual information verification is inefficient and security cannot be guaranteed.

[0004] The present application provides a remote large-scale information verification system, the remote large-scale information verification system comprising: a master controller and at least one slave controller, wherein each slave controller can be connected to a different signal loop;

[0005] A master controller, used for remotely controlling the on and off of a target slave controller in a signal loop according to a first user instruction;

[0006] The master controller is further used to send an information verification instruction to the target slave controller according to the second user instruction;

[0007] The target slave controller is used to return corresponding response information to the main controller after receiving the information verification instruction, wherein the response information is used to indicate the connectivity of the target signal loop where the target slave controller is located, and / or the response information includes detection information of the target signal loop where the target slave controller is located.

[0008] This embodiment realizes accurate replication and transmission of the contact states of the master controller and the slave controller through remote wireless communication. The master controller can flexibly control the on and off states of the slave controller contacts. The centralized monitoring and independent and accurate monitoring of signal loop information can be realized through information verification instructions. No manual on-site operation is required, which improves the accuracy, reliability and convenience of operation, effectively reduces the complexity of operation and the risk of misoperation, and ensures the safety of lines and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] 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 these drawings without paying creative work.

[0010] in:

[0011] Figure 1 A structural block diagram of a remote large-scale information verification system in one embodiment;

[0012] Figure 2 is a circuit diagram of a relay drive module in one embodiment;

[0013] Figure 3 is a circuit diagram of a power module in one embodiment;

[0014] Figure 4 FIG. 4 is a circuit diagram of a wireless communication module in one embodiment. DETAILED DESCRIPTION

[0015] 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.

[0016] like Figure 1 As shown, in one embodiment, a remote scale information verification system is provided, and the remote scale information verification system 001 includes: a main controller 10 and at least one slave controller 20, wherein each slave controller 20 can be connected to a different signal loop;

[0017] The main controller 10 is used to remotely control the on and off of the target slave controller 20 in the signal loop according to the first user instruction;

[0018] The main controller 10 is further used to send an information verification instruction to the target slave controller 20 according to the second user instruction;

[0019] The target slave controller 20 is used to return corresponding response information to the main controller 10 after receiving the information verification instruction, wherein the response information is used to indicate the connectivity of the target signal loop where the target slave controller 20 is located, and / or the response information includes detection information of the target signal loop where the target slave controller 20 is located.

[0020] Specifically, the remote scale information verification system 001 of the present application includes a main controller 10 and at least one slave controller 20, and each slave controller 20 can perform remote wireless communication or data interaction with the main controller 10. The main controller 10 can be set at the user side, and the slave controller 20 can be set at the measured line or signal loop. The measured line (signal loop) can be, for example, an optical fiber line, a cable line, a power supply line, etc., but not limited to various lines.

[0021] refer to Figure 1 The remote scale information verification system 001 includes a master controller 10 and n slave controllers 201-n. For example, the master controller 10 is connected to at least 32 slave controllers 20, and the slave controllers 20 are distinguished by numbering and implanting protocols. Of course, the value of n is set according to the actual application scenario, and this application does not limit this.

[0022] Each slave controller 20 is connected in series in a signal loop, and the connection between each slave controller 20 and the signal loop can be disconnected, that is, each slave controller 20 can be disconnected from the signal loop, or can be connected to the signal loop. The master controller 10 can control the disconnection (or on-off) of the slave controller 20 in the signal loop.

[0023] The user can operate the main controller 10 or issue a command to the main controller 10 to instruct the main controller 10 to control one or more slave controllers 20, thereby realizing remote large-scale information verification of multiple information loops.

[0024] More specifically, the master controller 10 can generate an on-off control instruction according to the first user instruction, and control the on-off of the slave controller 20 in the signal loop by remotely sending the on-off control instruction. When the master controller 10 controls the on-off of multiple slave controllers 20 at the same time, it can send an on-off control instruction to each target slave controller 20, and each on-off control instruction carries the unique identification and operation instruction of the corresponding target slave controller 20 to be controlled. Of course, the master controller 10 can also send an on-off control instruction to all slave controllers 20, and the on-off control instruction carries the unique identification and corresponding operation instruction of each target slave controller 20 to be controlled. After each slave controller 20 receives the on-off control instruction, it determines whether there is an operation instruction indicating itself according to the unique identification. If so, it performs the corresponding operation as the target slave controller 20. If not, the slave controller 20 is a non-target slave controller 20 and does not need to perform any operation.

[0025] The slave controller 20 is connected to the signal circuit via a contact, and the contact can be controlled by an on-off control instruction. More specifically, for example, the closing or opening of the contact can be controlled to control the on-off of the slave controller 20 and the signal circuit. This embodiment realizes the accurate replication and transmission of the contact states of the master controller 10 and the slave controller 20, and the master controller 10 controls the on-off state of the contact of the slave controller 20.

[0026] In addition, the target slave controller 20 may also return a response message indicating that the operation is completed to the master controller 10 after changing the on / off state.

[0027] In addition, the master controller 10 can also generate an information verification instruction according to the second user instruction, and control the slave controller 20 to detect or monitor the state or parameters of the signal loop by remotely sending the information verification instruction. When the master controller 10 controls multiple slave controllers 20 for information verification at the same time, it can send an information verification instruction to each target slave controller 20, and each information verification instruction carries the unique identification of the corresponding target slave controller 20 to be controlled and the verification operation instruction. Of course, the master controller 10 can also send information verification instructions to all slave controllers 20, and the information verification instruction carries the unique identification of each target slave controller 20 to be controlled and the corresponding verification operation instruction. After each slave controller 20 receives the information verification instruction, it determines whether there is a verification operation instruction indicating itself according to the unique identification. If there is, it will perform the corresponding information verification operation as the target slave controller 20. If not, the slave controller 20 is a non-target slave controller 20 and does not need to perform any operation.

[0028] Through the information verification instruction, the target slave controller 20 can detect the state or parameters of the signal loop in which it is located, and return corresponding response information to the main controller 10.

[0029] If the information verification instruction is used to instruct the target slave controller 20 to detect the on / off state of the signal loop, the response information returned by the target slave controller 20 is used to indicate the on / off state or connectivity of the signal loop.

[0030] If the information verification instruction is used to instruct the target slave controller 20 to detect some parameters of the signal loop in which it is located, the response information returned by the target slave controller 20 includes the detection information of the signal loop. The detection information is the collection information, which is specifically related to the type of the signal loop. The detection information includes, for example, one or more of the voltage, current, power, pulse width, etc. of the signal loop. This application does not impose any restrictions on this.

[0031] This application changes the traditional information verification and remote control non-stop power verification method, and executes the secondary measures list in advance to deploy each slave controller 20 in the loop. The personnel can remotely complete the information verification of the master station and the field at all levels and the remote control non-stop power test in the background, which greatly improves the standardization and efficiency of the operation. It is estimated that the single interval regular inspection or acceptance time can be shortened by 2 hours. Application prospects: The results of this project can be widely used in large-scale tests of automated telesignaling and remote control loops, greatly reducing operational risks, improving operational efficiency and automation level, and have good market promotion value.

[0032] This embodiment realizes accurate replication and transmission of the contact states of the main controller 10 and the slave controller 20 through remote wireless communication. The main controller 10 can flexibly control the on-off state of the contacts of the slave controller 20. The centralized monitoring and independent and accurate monitoring of signal loop information can be realized through information verification instructions. No manual on-site operation is required, which improves the accuracy, reliability and convenience of operation, effectively reduces the complexity of operation and the risk of misoperation, and ensures the safety of lines and personnel.

[0033] In one embodiment, the main controller 10 includes a main control module and a wireless communication module that are electrically connected;

[0034] The main control module is used to receive and respond to the first user instruction, generate an on-off control instruction according to the unique identifier of the target slave controller 20 and the first instruction information carried in the first user instruction, and send the on-off control instruction to the target slave controller 20 through the wireless communication module;

[0035] The target slave controller 20 is used to close the contact according to the received on-off control instruction to connect with the target signal loop, or to open the contact according to the received on-off control instruction to disconnect with the target signal loop.

[0036] Specifically, this embodiment realizes accurate replication and transmission of the contact states of the master controller 10 and the slave controller 20 through wireless communication, ensuring that the slave controller 20 is plug-and-play and connected in series in the signal loop, and the master controller 10 controls the on-off state of the contacts of the slave controller 20. By controlling the on-off of the contacts of the slave controller 20, effective control of the on-off of the slave controller 20 and the signal loop is achieved. Since there is no need to manually short-circuit the loop or change the line on site, human intervention is reduced, and therefore, it can effectively prevent the occurrence of DC faults or false tripping events caused by misoperation or miscontact.

[0037] In addition, because it is remotely controlled, various performance tests can be carried out on the signal circuit in a targeted manner according to the user's instructions. For example, the anti-shake performance of the signal circuit can be verified. The remote large-scale information verification system 001 is applied in scheduled inspection occasions to improve the efficiency and accuracy of scheduled inspection through wireless triggering and signal acquisition functions. At the same time, the communication function of the product is used to achieve remote monitoring and management.

[0038] The application of the remote large-scale information verification system 001 in fault elimination situations can help workers quickly locate and solve problems through precise triggering and signal acquisition functions. At the same time, the portability and ease of use of the product can improve the efficiency and quality of fault elimination work.

[0039] In one embodiment, the main controller 10 includes a main control module and a wireless communication module that are electrically connected;

[0040] The main control module is used to receive and respond to the second user instruction, generate an information verification instruction according to the unique identifier of the target slave controller 20 and the second instruction information carried in the second user instruction, and send the information verification instruction to the target slave controller 20 through the wireless communication module;

[0041] If the target slave controller 20 is connected to the target signal loop, the target slave controller 20 is used to obtain the actual information of the target signal loop according to the received information verification instruction, and generate and return corresponding response information to the master controller 10;

[0042] If the target slave controller 20 has not yet been connected to the target signal loop, the target slave controller 20 is used to close the contacts according to the received information verification instruction to connect to the target signal loop, obtain the actual information of the target signal loop, generate and return corresponding response information to the main controller 10.

[0043] Specifically, in some cases, before the master controller 10 controls the target slave controller 20 to perform information verification, some of the target slave controllers 20 may have been connected to the target signal loop where they are located, or some of the target slave controllers 20 may not have been connected to the target signal loop where they are located. Information verification requires that the slave controller 20 be connected to the signal loop where it is located, that is, the contacts of the slave controller 20 need to be closed.

[0044] Based on this, in order to avoid the failure or delay of information verification due to the lack of prior connection, the present embodiment gives the information verification instruction the dual functions of closing the contact when not connected to connect the slave controller 20 to the signal loop and verifying the information. Of course, if the slave controller 20 has been connected to the signal loop in advance, the slave controller 20 can directly perform the relevant information verification operation according to the information verification instruction, obtain the actual information of the target signal loop, generate and return the corresponding response information to the master controller 10.

[0045] This embodiment gives the information verification instruction the dual functions of closing contacts when not connected to connect the slave controller 20 to the signal loop and verifying the information. This can effectively avoid information verification failure or delay due to no prior connection, and ensure the normal execution of information verification.

[0046] In one embodiment, if the target slave controller 20 has not yet been connected to the target signal circuit, the target slave controller 20, if receiving an information verification instruction, sends a contact closure confirmation request to the main controller 10, and if receiving confirmation information returned by the main controller 10 indicating agreement to contact closure, closes the contact to connect to the target signal circuit, obtains actual information of the target signal circuit, and generates and returns corresponding response information to the main controller 10.

[0047] After receiving the contact closure confirmation request from the slave controller 20, the master controller 10 may send a secondary contact closure confirmation message to the user to request the user to indicate whether to agree to close the contact between the slave controller 20 and the signal loop. The user may send an indication of "agree to contact closure" or "disagree to contact closure" to the master controller 10 based on the actual scenario needs and after fully considering various factors. Then, the master controller 10 sends a confirmation message indicating agreement to contact closure or a rejection message indicating disagreement to contact closure to the slave controller 20. This enables the user and the master controller 10 to directly control the contacts of the slave controller 20.

[0048] In this embodiment, if the slave controller 20 receives an information verification instruction when it is not connected to the signal loop, it sends a confirmation request to the main controller 10 to close the contact when the main controller 10 confirms that the contact is closed. This not only ensures the absolute control of the main controller 10 over the opening and closing of the contacts of the slave controller 20, but also ensures the safety of the signal loop and reduces interference with the signal loop.

[0049] In one embodiment, the main controller 10 further includes a relay driving module connected to the main control module.

[0050] The relay driving module is used to convert the relay driving signal of the main control module into serial-to-parallel signals to obtain multiple sub-driving signals, and control each relay according to the sub-driving signals, wherein one sub-driving signal corresponds to one relay, and each relay is used to control the on-off between the target contact in the main controller 10 and the external circuit.

[0051] Specifically, the target contact may be a target input contact and a target output contact of the main controller 10 .

[0052] The input and output contacts of this embodiment adopt a no-contact design and are completely insulated from the external loop or external circuit. This design can effectively prevent safety problems caused by electrical interference and misoperation, and improve the stability and reliability of the system.

[0053] In one embodiment, the contacts of the slave controller 20 are electrically isolated by using contact isolation of a photocoupler, or the contacts of the slave controller 20 are electrically isolated by using empty contact isolation;

[0054] If the contacts of the slave controller 20 are electrically isolated by using empty contact isolation, the slave controller 20 includes a slave control module and a relay drive module connected to the slave control module;

[0055] The relay driving module is used to convert the relay driving signal of the slave control module into a serial-to-parallel conversion to obtain a multi-channel sub-driving signal, and control each relay according to the sub-driving signal, wherein one sub-driving signal corresponds to one relay, and each relay is used to control the on-off between the target contact in the slave controller 20 and the external circuit.

[0056] Specifically, the target contact is a contact for connecting the slave controller 20 and the signal circuit (external circuit). The contact can be closed to connect the slave controller 20 to the signal circuit, and the contact can be opened to disconnect the slave controller 20 from the signal circuit.

[0057] Relay is an automatic switching element with isolation function. It is widely used in remote control, telemetry, communication, automatic control, mechatronics and power electronic equipment. It is one of the most important control elements.

[0058] The relay is used to control the on / off of the connection between the target contact point of the slave controller 20 and the external circuit.

[0059] In this embodiment, the contacts of the slave controller 20 can be electrically isolated by using contact isolation of a photocoupler, or by using empty contact isolation. With the contact isolation design, the slave controller 20 is completely insulated from the external loop or external circuit. This design can effectively prevent safety problems caused by electrical interference and misoperation, improve the stability and reliability of the system, ensure electrical isolation between the slave controller 20 and the signal loop when necessary, ensure the safety of both, and reduce interference to the signal loop.

[0060] In addition, the above relay driving circuit can be used to ensure the accuracy and stability of the input signal and ensure that the external load can be driven.

[0061] In one embodiment, the relay driving module includes a serial-to-parallel circuit and a driving circuit;

[0062] The serial-to-parallel circuit includes at least one cascaded serial-to-parallel chip, and the driving circuit includes the same number of driving chips as the serial-to-parallel chips; the m input terminals of all the serial-to-parallel chips are respectively connected to the m output terminals of the control module, and the n output terminals of each serial-to-parallel chip are respectively connected to the n input terminals of the corresponding driving chip through resistors, and the n output terminals of each driving chip output n-way driving signals for driving n-way relays, wherein the control module is a master control module or a slave control module. Specifically, Figure 2 is a circuit diagram of a relay drive module in one embodiment; Figure 2The relay drive circuit includes a serial-to-parallel circuit and a drive circuit. The serial-to-parallel circuit includes four cascaded serial-to-parallel chips (chips U2, U4, U6 and U8), and the drive circuit includes four drive chips (chips U1, U3, U5 and U7). Chip U2 corresponds to chip U1, chip U4 corresponds to chip U3, chip U6 corresponds to chip U5, and chip U8 corresponds to chip U7.

[0063] Pins 12 and 11 of the serial-to-parallel chips U2, U4, U6 and U8 are respectively connected to the two output terminals of the control module to obtain control signals SER_RCK and SER_SCK. Pins 16 of the serial-to-parallel chips U2, U4, U6 and U8 are connected to the voltage VCC_MCU_3V3.

[0064] In the peripheral circuit of the serial-to-parallel chip U2, the voltage VCC_MCU_3V3 is also connected to the ground GND through the capacitor C1.

[0065] In the peripheral circuit of the serial-to-parallel chip U4, the voltage VCC_MCU_3V3 is also connected to the ground GND through the capacitor C2.

[0066] In the peripheral circuit of the serial-to-parallel chip U6, the voltage VCC_MCU_3V3 is also connected to the ground GND through the capacitor C3.

[0067] In the peripheral circuit of the serial-to-parallel chip U8, the voltage VCC_MCU_3V3 is also connected to the ground GND through the capacitor C4.

[0068] Pin 15 of the serial-to-parallel chip U2 is connected to pin 1 of its corresponding driver chip U1 through resistor R1; pin 15 of the serial-to-parallel chip U4 is connected to pin 1 of its corresponding driver chip U3 through resistor R14; pin 15 of the serial-to-parallel chip U6 is connected to pin 1 of its corresponding driver chip U5 through resistor R26; pin 15 of the serial-to-parallel chip U8 is connected to pin 1 of its corresponding driver chip U7 through resistor R38.

[0069] Pin 14 of the serial-to-parallel chip U2 is connected to the control signal SER_DATA of the control module, pin 14 of the serial-to-parallel chip U4 is connected to pin 9 of the serial-to-parallel chip U2, pin 14 of the serial-to-parallel chip U6 is connected to pin 9 of the serial-to-parallel chip U4, and pin 14 of the serial-to-parallel chip U8 is connected to pin 9 of the serial-to-parallel chip U6. Pin 9 of the serial-to-parallel chip U8 is left floating.

[0070] Pins 13 of the serial-to-parallel chips U2, U4, U6 and U8 are all grounded GND.

[0071] The pins 10 of the serial-to-parallel chips U2, U4, U6 and U8 are all connected to the voltage VCC_MCU_3V3 through the resistor R018. The pins 10 of the serial-to-parallel chips U2, U4, U6 and U8 are also connected to the ground GND through the capacitor C5.

[0072] The serial-to-parallel chips U2, U4, U6 and U8 may be 74HC595D chips.

[0073] Pin 1 of the serial-to-parallel chip U2 is connected to pin 2 of the corresponding driver chip U1 through resistor R2; pin 2 of the serial-to-parallel chip U2 is connected to pin 3 of the corresponding driver chip U1 through resistor R3; pin 3 of the serial-to-parallel chip U2 is connected to pin 4 of the corresponding driver chip U1 through resistor R4; pin 4 of the serial-to-parallel chip U2 is connected to pin 5 of the corresponding driver chip U1 through resistor R5; pin 5 of the serial-to-parallel chip U2 is connected to pin 6 of the corresponding driver chip U1 through resistor R6; pin 6 of the serial-to-parallel chip U2 is connected to pin 7 of the corresponding driver chip U1 through resistor R7; pin 7 of the serial-to-parallel chip U2 is connected to pin 8 of the corresponding driver chip U1 through resistor R8; pin 8 of the serial-to-parallel chip U2 is grounded GND. Pin 9 of the driver chip U1 is grounded GND.

[0074] Pin 1 of the serial-to-parallel chip U4 is connected to pin 2 of the corresponding driver chip U3 through resistor R15; pin 2 of the serial-to-parallel chip U4 is connected to pin 3 of the corresponding driver chip U3 through resistor R16; pin 3 of the serial-to-parallel chip U4 is connected to pin 4 of the corresponding driver chip U3 through resistor R17; pin 4 of the serial-to-parallel chip U4 is connected to pin 5 of the corresponding driver chip U3 through resistor R18; pin 5 of the serial-to-parallel chip U4 is connected to pin 6 of the corresponding driver chip U3 through resistor R19; pin 6 of the serial-to-parallel chip U4 is connected to pin 7 of the corresponding driver chip U3 through resistor R20; pin 7 of the serial-to-parallel chip U4 is connected to pin 8 of the corresponding driver chip U3 through resistor R21; pin 8 of the serial-to-parallel chip U4 is grounded GND. Pin 9 of the driver chip U3 is grounded GND.

[0075] Pin 1 of the serial-to-parallel chip U6 is connected to pin 2 of the corresponding driver chip U5 through resistor R27; pin 2 of the serial-to-parallel chip U6 is connected to pin 3 of the corresponding driver chip U5 through resistor R28; pin 3 of the serial-to-parallel chip U6 is connected to pin 4 of the corresponding driver chip U5 through resistor R29; pin 4 of the serial-to-parallel chip U6 is connected to pin 5 of the corresponding driver chip U5 through resistor R30; pin 5 of the serial-to-parallel chip U6 is connected to pin 6 of the corresponding driver chip U5 through resistor R31; pin 6 of the serial-to-parallel chip U6 is connected to pin 7 of the corresponding driver chip U5 through resistor R32; pin 7 of the serial-to-parallel chip U6 is connected to pin 8 of the corresponding driver chip U5 through resistor R33; pin 8 of the serial-to-parallel chip U6 is grounded GND. Pin 9 of the driver chip U5 is grounded GND.

[0076] Pin 1 of the serial-to-parallel chip U8 is connected to pin 2 of the corresponding driver chip U7 through resistor R39;

[0077] Pin 2 of the serial-to-parallel chip U8 is connected to pin 3 of the corresponding driver chip U7 through resistor R40;

[0078] Pin 3 of the serial-to-parallel chip U8 is connected to pin 4 of the corresponding driver chip U7 through resistor R41;

[0079] Pin 4 of the serial-to-parallel chip U8 is connected to pin 5 of the corresponding driver chip U7 through resistor R42;

[0080] Pin 5 of the serial-to-parallel chip U8 is connected to pin 6 of the corresponding driver chip U7 through resistor R43;

[0081] Pin 6 of the serial-to-parallel chip U8 is connected to pin 7 of the corresponding driver chip U7 through resistor R44;

[0082] Pin 7 of the serial-to-parallel chip U8 is connected to pin 8 of the corresponding driver chip U7 via resistor R45;

[0083] The pin 8 of the serial-to-parallel chip U8 is grounded to GND. The pin 9 of the driver chip U7 is grounded to GND.

[0084] Pin 10 of the driver chip U1 is connected to the voltage VCC5V_RELAY, and pins 11-18 of the driver chip U1 are respectively connected to 8 relays, and control signals RELAY_CTR0-RELAY_CTR7 are output to the 8 relays respectively.

[0085] Pin 10 of the driver chip U3 is connected to the voltage VCC5V_RELAY, and pins 11-18 of the driver chip U3 are respectively connected to 8 relays, and control signals RELAY_CTR8-RELAY_CTR15 are output to the 8 relays respectively.

[0086] Pin 10 of the driver chip U5 is connected to the voltage VCC5V_RELAY, and pins 11-18 of the driver chip U5 are respectively connected to 8 relays, and control signals RELAY_CTR16~RELAY_CTR23 are output to the 8 relays respectively.

[0087] Pin 10 of the driver chip U7 is connected to the voltage VCC5V_RELAY, and pins 11-18 of the driver chip U7 are respectively connected to 8 relays, and control signals RELAY_CTR24~RELAY_CTR31 are output to the 8 relays respectively.

[0088] The driver chips U1, U3, U5, and U7 may be ULN2803A chips.

[0089] certainly, Figure 2 This is merely an exemplary description, and the number of relays that can be controlled by the driver chip can be set according to actual conditions, and this application does not impose any restrictions on this. Figure 2 The resistance value of the middle resistor and the capacitance value of the capacitor can be set according to the actual application scenario, and this application does not impose any restrictions on this.

[0090] In this embodiment, the master and slave controllers 20 both use internal batteries to power the circuit boards, and the input and output contacts both use open contacts to insulate and isolate them from the external circuit.

[0091] The single-chip microcomputer (main control module or slave control module) of this embodiment sends the control signal to the serial-to-parallel circuit, and then the serial-to-parallel chip controls the driving chip to control the relay, thereby realizing contact isolation; this circuit can effectively save the IO resources of the single-chip microcomputer, and also plays a protective role to a certain extent, preventing the single-chip microcomputer from being damaged by the external strong electricity.

[0092] In one embodiment, the main controller 10 further includes a power module;

[0093] A power module, used to charge the power storage module when connected to a first voltage, and to convert the first voltage into at least one second voltage to supply power to the main control module and / or the wireless communication module;

[0094] The power supply module is also used to convert the third voltage of the power storage module into at least one second voltage to power the main control module and / or the wireless communication module when the first voltage is not connected.

[0095] Specifically, Figure 3 is a circuit diagram of a power module in one embodiment; Figure 3 The power module includes a lithium battery charge and discharge management module and a 3.3V power module; after DC5V (direct current voltage 5V) is input into the lithium battery charge and discharge management module, the chip U10 converts the 5V voltage into 3.7V voltage to charge the lithium battery, and at the same time, the chip U11 of the 3.3V power module converts the 5V voltage into 3.3V to power the main control circuit and other modules; when there is no DC5V (direct current voltage 5V) input, the lithium battery 3.7V voltage is increased to 5V through the lithium battery charge and discharge management module, and then the 5V voltage is converted into 3.3V through the 3.3V power module to power the main control circuit and other modules.

[0096] Pin 1 of chip U10 is connected to pin 1 of terminal P1 to access external power supply POWER_IN, such as DC5V (direct current voltage 5V), and pin 2 of chip U10 is connected to pin 2 of terminal P1 and grounded GND. Pin 3 of chip U10 is connected to pin 2 of terminal P2 and grounded, and pin 4 of chip U10 is connected to pin 1 of terminal P2 to charge the battery (BAT3.7V), and the battery is connected to U10 through terminal P2. Pin 6 of chip U10 is connected to pins 1 and 2 of chip U11 through switch S2. Pin 6 of chip U10 is grounded through capacitor C6, and pin 6 of chip U10 is grounded through capacitor C7.

[0097] Pins 1 and 2 of chip U11 are also connected to voltage VCC5V_RELAY, pins 3 and 4 of chip U11 are grounded, pins 7 and 8 of chip U11 are connected to voltage VCC_MCU_3V3, pins 7 and 8 of chip U11 are also grounded through capacitor C8, pins 7 and 8 of chip U11 are also grounded through capacitor C9, and pins 5 and 6 of chip U11 are grounded.

[0098] certainly, Figure 3 This is merely an exemplary description, and the present application does not limit the circuit structure and function of the power module.

[0099] In addition, both the master and slave controllers 20 can use the power module of this embodiment, and use a built-in rechargeable battery for power supply, which can be charged through a USB interface or a dedicated charger. The battery management system can have power monitoring and low power alarm functions to ensure that the device can promptly remind the user to charge when the power is low.

[0100] In a specific embodiment, the circuit board design of the master-slave controller 20 needs to ensure that it has stable power management and signal processing capabilities. A low power consumption design is adopted to extend the service life of the internal battery. At the same time, the circuit board should have a good electromagnetic compatibility (EMC) design to reduce external interference.

[0101] In this embodiment, the power module can store electric energy and convert it to a target voltage to power other modules when there is an external power supply, and convert the stored electric energy to a target voltage to power other modules when there is no external power supply, thereby achieving power supply guarantee.

[0102] In one embodiment, the slave controller 20 adopts a convenient internal card-type structure connector that can be easily accessed and removed, and / or, the connector of the slave controller 20 is provided with a protective cover or the connector part of the slave controller 20 is wrapped with an insulating material, and / or, the connector of the slave controller 20 adopts an external anti-accidental contact insulation design;

[0103] Specifically, the slave controller 20 uses a convenient internal card-type structure connector that can be easily connected and removed, such as a convenient pluggable connector. It should be noted that the slave controller 20 is installed or connected in series to the signal circuit through the connector, but the connection point between the slave controller 20 and the signal circuit can still be connected or disconnected.

[0104] The connector of slave controller 20 adopts a convenient internal card structure, which can be easily connected and removed, and adopts an external anti-accidental contact insulation design, which can effectively prevent the slave controller 20 from falling and external circuit interference.

[0105] In addition, the connector can have good mechanical strength and durability and can withstand multiple plugging and unplugging operations.

[0106] Adopt external insulation design to prevent accidental contact, such as setting up a protective cover or using insulating material to wrap the joint part, to improve the safety of operation.

[0107] In addition, when assembling and manufacturing the master-slave controller 20, laboratory and field tests can be carried out to verify the optimization and improvement of product performance, including electrical performance, communication performance, environmental adaptability, etc. The necessary optimization and improvement of the product is carried out according to the test results. It can be put into use only when the performance is determined to be good.

[0108] In one embodiment, the wireless communication module uses a Lorazepam radio frequency module (a radio frequency module designed based on low-power LAN wireless standards) and a Lorawan point-to-point protocol for communication. Lorawan is a set of wide area network protocols designed based on LoRa long-distance wireless communication technology, including MAC layer communication protocols and network system architecture.

[0109] Specifically, Figure 4 is a circuit diagram of a wireless communication module in one embodiment; Figure 4 Pins 1, 3, 11, 12, 17, 28, 29, and 44 of chip U9 are grounded, pin 4 of chip U9 is grounded through key switch S1, pins 13 and 14 of chip U9 are connected to voltage VCC_MCU_3V3, pins 19 and 20 of chip U9 are respectively connected to the RXD3 signal terminal and TXD3 signal terminal of the main control chip in the main control module, pin 21 of chip U9 is grounded through key switch S3, pin 24 of chip U9 is grounded through resistors R65 and R70, pin 24 of chip U9 is also connected to the base of transistor Q1 through resistor R65, the emitter of transistor Q1 is grounded, the collector of transistor Q1 is connected to the cathode of light-emitting diodes LED0-LED3 through resistor R64, and the anode of light-emitting diodes LED0-LED3 is connected to voltage VCC_MCU_3V3. The pin 36 of the chip U9 is connected to the cathode of the light emitting diode LED0-LED1 through the resistor R58, and the anode of the light emitting diode LED0-LED1 is connected to the voltage VCC_MCU_3V3.

[0110] Chip U9 can be WH-L101-L-H20.

[0111] It should be noted that the main control module of the main controller 10 of this embodiment may include a single-chip microcomputer STM32F103C8T6, a download interface, an external crystal oscillator, a reset circuit and other circuits.

[0112] In addition, the communication protocol of the wireless communication module may also include a data frame structure, an encryption algorithm, a retransmission mechanism, etc. to ensure the security and reliability of data transmission.

[0113] This project develops a centralized triggering tool with one master and multiple slaves based on the Lora communication protocol of the Internet of Things, and realizes the replication and transmission of the contact status between the master controller 10 and the slave controller 20 through wireless communication.

[0114] The wireless communication module of this embodiment adopts a Lora communication module, the external circuit is simple, and data is transmitted with the single-chip microcomputer through a serial port, which saves IO resources and has a long transmission distance.

[0115] In one embodiment, the master controller 10 is further used to remotely configure the slave controller 20 , and / or the master controller 10 is further used to remotely monitor the functions of the slave controller 20 .

[0116] Specifically, the master controller 10 can adjust the trigger pulse width to achieve independent control or centralized control of any one or more slave controllers 20, thereby realizing centralized information monitoring and independent and precise triggering.

[0117] For example, the master controller 10 can access at least 32 slave controllers 20 to achieve one-to-many centralized control. The slave controllers 20 are distinguished by numbering and implanting protocols for easy management and identification. At the same time, the master controller 10 has the function of remotely configuring and monitoring the slave controllers 20.

[0118] In addition, the master-slave controller 20 can design an appropriate signal conditioning circuit to ensure the accuracy and stability of the input signal. For the output signal, a driving circuit should be designed to ensure that it can drive the external load.

[0119] In terms of trigger and input / output circuit design, the circuit board design can use different power management chips and signal processing chips, but still need to ensure low power consumption and good electromagnetic compatibility; the power supply scheme can be changed to an external power adapter, but the independence and portability of the device must not be affected; the contact isolation can use optocouplers or empty contacts to achieve electrical isolation; the signal conditioning circuit can use different operational amplifiers or digital signal processors for signal processing. In terms of communication module design and communication protocol customization, the communication module can choose other types of wireless communication modules, such as ZigBee, Bluetooth, etc., but must meet the requirements of low power consumption and long-distance transmission; the communication protocol can be customized based on other IoT communication protocols, such as MQTT, CoAP, etc., but the security and reliability of data transmission must be guaranteed; the master-slave control relationship can adopt a star network topology and be centrally controlled through a central node. In terms of slave controller connector design, the structural design can adopt a plug-in connection, such as using a standard DB9 or RJ45 interface; the anti-accidental touch design can adopt a physical locking mechanism, such as using a buckle or knob for fixing. In terms of sample assembly, production and testing, sample assembly can be mass-produced using automated production lines to improve production efficiency and product quality; laboratory testing can use different test equipment and methods, such as using a network analyzer for communication performance testing; field testing can be performed in more application scenarios, such as industrial automation, smart home and other fields. In terms of practical applications, scheduled inspection applications can be extended to other fields, such as regular inspection and maintenance of medical equipment; and defect elimination applications can be combined with other fault diagnosis systems to form a more complete solution.

[0120] The innovation of this application lies in: information trigger circuit design pulse width control function; master-slave controller state synchronization, two-way interactive control; slave controller thumb design, portable placement; input and output contacts and signal circuit insulation isolation design; protocol and components can be expanded according to site needs. Realize remote signal anti-shake performance test; diversified functions, can realize information scale verification, remote control non-stop power test, SOE resolution verification, etc.; optimize the operation process, multiple operation points are concentrated into one; physical isolation, does not affect the operation circuit.

[0121] The remote large-scale information verification system of this application can be used for practical applications in on-site scheduled inspections, fault elimination, etc. It realizes remote large-scale centralized verification of automated information, changes the traditional information verification method, and realizes remote large-scale button-type verification. One deployment can meet the verification needs of the site and master stations at all levels, avoids the operational risks caused by arbitrary short circuits, frees up manpower, reduces operational risks, and makes the operation process visible and controllable. It can verify the anti-shake performance of remote signals, and can be widely used in automated information verification, remote control pulse width verification, and other occasions.

[0122] The remote scale information verification system of this application can be used as a special tool for automated information verification. It does not require manual on-site triggering of information through short-circuit circuits. Instead, it controls the connection or disconnection of the slave controller and the signal circuit according to user needs and instructions, and triggers information when connected. It is intuitive and targeted, can verify the anti-shake performance of the signal circuit, and is not easy to cause accidental contact, thereby avoiding the occurrence of DC faults or false tripping events, ensuring the working safety of the signal circuit. In addition, the remote scale information verification system of this application is highly efficient, simple and easy to operate, and effectively reduces the risk of verification. It simplifies the on-site installation and maintenance process and meets the needs of the market and users.

[0123] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in the present application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0124] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0125] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A remote large-scale information verification system, characterized in that: The remote scale information verification system comprises: a master controller and at least one slave controller, wherein each of the slave controllers can be connected to different signal loops; The master controller is used to remotely control the on and off of the target slave controller in the signal loop according to the first user instruction; The master controller is further configured to send an information verification instruction to the target slave controller according to a second user instruction; The target slave controller is used to return corresponding response information to the master controller after receiving the information verification instruction, wherein the response information is used to indicate the connectivity of the target signal loop where the target slave controller is located, and / or the response information includes detection information of the target signal loop where the target slave controller is located.

2. The remote large-scale information verification system according to claim 1 is characterized in that: The main controller includes a main control module and a wireless communication module that are electrically connected; The main control module is used to receive and respond to a first user instruction, generate an on-off control instruction according to the unique identifier of the target slave controller and the first instruction information carried in the first user instruction, and send the on-off control instruction to the target slave controller through the wireless communication module; The target slave controller is used to close the contact according to the received on-off control instruction to connect with the target signal loop, or to open the contact according to the received on-off control instruction to disconnect with the target signal loop.

3. The remote large-scale information verification system according to claim 1 is characterized in that: The main controller includes a main control module and a wireless communication module which are electrically connected; The main control module is used to receive and respond to a second user instruction, generate an information verification instruction according to the unique identifier of the target slave controller and the second instruction information carried in the second user instruction, and send the information verification instruction to the target slave controller through the wireless communication module; If the target slave controller is connected to the target signal loop, the target slave controller is used to obtain the actual information of the target signal loop according to the received information verification instruction, and generate and return corresponding response information to the master controller; If the target slave controller has not yet been connected to the target signal loop, the target slave controller is used to close contacts according to the received information verification instruction to connect to the target signal loop, obtain actual information of the target signal loop, generate and return corresponding response information to the master controller.

4. The remote large-scale information verification system according to claim 2 or 3, characterized in that: The main controller also includes a relay driving module connected to the main control module. The relay driving module is used to perform serial-to-parallel conversion on the relay driving signal of the main control module to obtain multiple sub-driving signals, and control each relay according to the sub-driving signals, wherein one sub-driving signal corresponds to one relay, and each relay is used to control the on-off between the target contact in the main controller and the external circuit.

5. The remote large-scale information verification system according to claim 1 is characterized in that: The contacts of the slave controller are electrically isolated by using contact isolation of a photoelectric coupler, or the contacts of the slave controller are electrically isolated by using empty contact isolation; If the contacts of the slave controller are electrically isolated by using empty contact isolation, the slave controller comprises a slave control module and a relay drive module connected to the slave control module; The relay driving module is used to perform serial-to-parallel conversion on the relay driving signal of the slave control module to obtain multiple sub-driving signals, and control each relay according to the sub-driving signals, wherein one sub-driving signal corresponds to one relay, and each relay is used to control the on-off between the target contact in the slave controller and the external circuit.

6. The remote large-scale information verification system according to claim 5 is characterized in that: The relay driving module includes a serial-to-parallel circuit and a driving circuit; The serial-to-parallel circuit includes at least one cascaded serial-to-parallel chip, and the driving circuit includes the same number of driving chips as the serial-to-parallel chips; the m input terminals of all the serial-to-parallel chips are respectively connected to the m output terminals of the control module, and the n output terminals of each of the serial-to-parallel chips are respectively connected to the n input terminals of the corresponding driving chip through resistors, and the n output terminals of each of the driving chips output n-channel driving signals for driving n-channel relays, wherein the control module is a master control module or a slave control module.

7. The remote large-scale information verification system according to claim 2 or 3, characterized in that: The main controller also includes a power supply module; The power supply module is used to charge the power storage module when connected to a first voltage, and to power the main control module and / or the wireless communication module after converting the first voltage into at least one second voltage; The power supply module is also used to convert the third voltage of the power storage module into at least one second voltage to power the main control module and / or the wireless communication module when the first voltage is not connected.

8. The remote large-scale information verification system according to claim 1 is characterized in that: The slave controller adopts a convenient internal card-type structural connector that can be easily connected and removed, and / or the connector of the slave controller is provided with a protective cover or the connector part of the slave controller is wrapped with insulating material, and / or the connector of the slave controller adopts an external insulation design to prevent accidental contact.

9. The remote large-scale information verification system according to claim 2, characterized in that: The wireless communication module uses the Lorazepam radio frequency module and the Lorawan point-to-point protocol for communication.

10. The remote large-scale information verification system according to claim 1, characterized in that: The master controller is further used to remotely configure the slave controller, and / or the master controller is further used to remotely monitor the function of the slave controller.

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