Remote hard pressing plate switching control device

Abstract

The embodiment of the invention discloses a remote hard pressing plate switching control device which comprises the steps that after the device is powered on and started, a communication reconnection step is executed, specifically, whether power-on voltage is stable or not is judged, hardware is subjected to self-inspection, and whether communication connection between a communication module and a power distribution automation master station is successful or not is judged; whether encryption tunnel negotiation between the encryption and decryption module and the power distribution automation master station is successful or not is judged, and if any one of the communication connection and the encryption tunnel negotiation is continuously judged to be unsuccessful for n times, the communication reconnection step is executed again after waiting for a first duration; and after both the communication connection and the encryption tunnel negotiation are successful, the control module executes a switching step, which comprises the following steps: acquiring a hard pressing plate switching control instruction sent by the power distribution automation master station, and controlling the switching module to switch the hard pressing plate according to the instruction. The intelligent control of power-off communication reconnection and remote hard pressing plate switching is realized, the operation and maintenance difficulty is reduced, and the working efficiency and the personal and equipment safety are improved.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution automation control, and in particular to a remote control device for throwing in and out a hard pressure plate. Background Art

[0002] Distribution network automation equipment / cabinets play a vital role in the operation of the power grid. Ensuring the stable operation of automation equipment / cabinets is the key to grassroots operation and maintenance. Since the distribution network automation equipment / cabinets were put into operation, there has been a considerable amount of operation. In daily operation and maintenance management, communication encryption modules often go offline, the master station remote control is lost, and the on-site situation requires the on-site insertion and withdrawal of hard pressure plates to protect the safety of personnel and equipment. Such repeated operation and maintenance work wastes a lot of manpower and material resources every year. Summary of the invention

[0003] The present invention provides a remote control device for throwing and retracting a hard pressure plate, which realizes power failure communication reconnection and intelligent control of remote throwing and retracting a hard pressure plate, reduces the difficulty of operation and maintenance, and improves work efficiency and personal equipment safety.

[0004] According to one aspect of the present invention, a remote control device for inserting and retracting a hard pressure plate is provided, comprising:

[0005] Control module, communication module, encryption and decryption module and investment and withdrawal module;

[0006] The control module is electrically connected to the communication module, the encryption and decryption module, and the insertion and withdrawal module;

[0007] The communication module is used for communication connection with the distribution automation master station, and the encryption and decryption module is used for encrypting and decrypting the communication data between the control module and the distribution automation master station;

[0008] The control module is used to execute the communication reconnection step after the device is powered on and started; wherein the communication reconnection step includes: judging whether the power-on voltage is stable, and performing a self-check on the hardware after the voltage is stable, and after the self-check passes, judging whether the communication connection between the communication module and the distribution automation master station is successful, and judging whether the encryption tunnel negotiation between the encryption and decryption module and the distribution automation master station is successful, if any one of the communication connection and the encryption tunnel negotiation is unsuccessful for n consecutive times, then re-execute the communication reconnection step after waiting for the first time length; wherein n is an integer greater than 1;

[0009] The control module is also used to execute the throwing and withdrawing steps after the communication connection and the encrypted tunnel negotiation are successful, wherein the throwing and withdrawing steps include: obtaining the throwing and withdrawing hard pressure plate control instructions sent by the distribution automation master station, and controlling the throwing and withdrawing module to throw and withdraw the hard pressure plate according to the throwing and withdrawing hard pressure plate control instructions.

[0010] Optionally, the communication module includes at least one of a 4G wireless interface, an RS232 debugging interface, an RS485 interface, an Ethernet interface, and a fiber optic interface.

[0011] Optionally, the communication module communicates with the distribution automation master station via a SIM card;

[0012] The communication reconnection steps specifically include:

[0013] S1-1: After the device is powered on, it will count down for 10 seconds to determine whether the voltage is stable. If so, it will execute S1-2, otherwise it will execute S1-11;

[0014] S1-2: Determine whether the hardware self-test passes, if yes, execute S1-3, otherwise execute S1-4;

[0015] S1-3: Determine whether the SIM card reading result shows that there is a card. If so, execute S1-5; otherwise, execute S1-6;

[0016] S1-4: Determine whether the number of failures exceeds T1 times. If so, execute S1-11. Otherwise, T1=T1+1, and continue to execute S1-2; wherein T1 is an integer;

[0017] S1-5: Determine whether the dial-up registration is successful. If so, execute S1-7; otherwise, execute S1-8;

[0018] S1-6: Determine whether the number of failures exceeds T2 times. If so, execute S1-11. Otherwise, T2=T2+1, and continue to execute S1-3; wherein T2 is an integer;

[0019] S1-7: Determine whether the encrypted tunnel negotiation is successful. If so, execute S1-9; otherwise, execute S1-10;

[0020] S1-8: Determine whether the number of failures exceeds T3 times. If so, execute S1-11. Otherwise, T3=T3+1, and continue to execute S1-5; wherein T3 is an integer;

[0021] S1-9: The device is started successfully and the process ends;

[0022] S1-10: Determine whether the number of failures exceeds T4 times. If so, jump to S1-11, otherwise T4=T4+1, and continue to execute S1-3; where T4 is an integer;

[0023] S1-11: The device fails to start. The number of failed device startups is recorded and saved. After waiting for 300 seconds, S1-1 is executed.

[0024] Optionally, the investment and withdrawal module includes an investment and withdrawal instruction execution unit and an image recognition unit;

[0025] The throw-in and throw-out command execution unit is used to control the electromagnetic operating mechanism of the hard pressure plate to close or open the hard pressure plate;

[0026] The image recognition unit is used to capture an image of the hard pressing plate and determine a state of the hard pressing plate according to the image, wherein the state of the hard pressing plate includes an open hard pressing plate and a closed hard pressing plate.

[0027] Optionally, the investment and withdrawal steps specifically include:

[0028] S3-1: Determine whether the control command of the hard pressure plate is received from the distribution automation master station. If yes, execute S3-2; otherwise, execute S3-1 after a delay of 5 seconds;

[0029] S3-2: Execute the communication status judgment step to judge whether the communication status between the distribution automation master station and the communication module is good;

[0030] S3-3: If the communication condition is good, execute S3-4. If the communication condition is poor, it is necessary to go to the site to insert and remove the hard pressure plate, return a null value, and end the process;

[0031] S3-4: Control the corresponding hard pressure plate of the switching module according to the switching hard pressure plate control instruction of the distribution automation master station;

[0032] S3-5: Determine whether the hard pressure plate is in place, if so, execute S3-6, otherwise execute S3-7;

[0033] S3-6: Return the information that the hard pressure plate is successfully put in and withdrawn, and end the process;

[0034] S3-7: Return the information of the failure of the hard pressure plate to be inserted or withdrawn and the image information of the hard pressure plate, and end the process.

[0035] Optionally, the communication status determination step includes:

[0036] S4-1: Determine whether the hardware self-test has passed, if so, execute S4-2, otherwise execute S4-3;

[0037] S4-2: Determine whether the SIM card reading result shows that there is a card. If so, execute S4-4; otherwise, execute S4-5;

[0038] S4-3: Determine whether the number of failures exceeds T1 times. If so, jump to S4-10. Otherwise, T1=T1+1 and continue to execute S4-1; wherein T1 is an integer;

[0039] S4-4: Determine whether the dial-up registration is successful, if so, execute S4-6, otherwise execute S4-7;

[0040] S4-5: Determine whether the number of failures exceeds T2 times. If so, jump to S4-10, otherwise T2=T2+1, and continue to execute S4-2; wherein T2 is an integer;

[0041] S4-6: Determine whether the encrypted tunnel negotiation is successful, if so, execute S4-8, otherwise execute S4-9;

[0042] S4-7: Determine whether the number of failures exceeds T3 times. If so, jump to S4-10. Otherwise, T3=T3+1, and continue to execute S4-4; wherein T3 is an integer;

[0043] S4-8: Determine that the communication status is good and end the process;

[0044] S4-9: Determine whether the number of failures exceeds T4 times. If so, execute S4-10. Otherwise, T4=T4+1, and continue to execute S4-2; wherein T4 is an integer;

[0045] S4-10: Determine that the communication condition is poor and end the process.

[0046] Optionally, the encryption and decryption module includes an encryption unit and a decryption unit;

[0047] The encryption unit is used to encrypt information when sending it to the distribution automation master station;

[0048] The decryption unit is used to decrypt the information received from the distribution automation master station and transmit it to the control module;

[0049] The control module is a micro processing unit.

[0050] Optional, remote control device for throwing and retracting the hard pressure plate, also includes:

[0051] Power management module, storage module, indicator light and housing;

[0052] The power management module is used to supply power to other modules in the remote hard pressure plate control device;

[0053] The storage module and the indicator light are electrically connected to the control module;

[0054] The control module is used to control the status of the indicator lights according to the operating status of each module;

[0055] The control module, the communication module, the encryption and decryption module, the insertion and withdrawal module, the power management module and the storage module are all arranged in the shell, and the indicator light is arranged on the surface of the shell.

[0056] Optionally, the indicator light includes an alarm indicator light, a network indicator light, a data indicator light, and a power indicator light;

[0057] The control module is used to control the state of the alarm indicator light according to whether there is an abnormality in the device, control the state of the network indicator light according to the communication connection state with the distribution automation master station, control the state of the data indicator light according to the data transmission state with the distribution automation master station, and control the state of the power indicator light according to the startup state.

[0058] Optionally, the storage capacity of the storage module is greater than 1 GB.

[0059] The remote hard pressure plate control device provided by the embodiment of the present invention includes a control module, a communication module, an encryption and decryption module, and a throw and withdraw module; after the device is powered on and started, the communication connection between the device and the distribution automation master station is ensured to be reliable and safe through steps such as voltage stability detection, hardware self-check, communication connection judgment, and encrypted tunnel negotiation. After the communication connection and encrypted tunnel negotiation are successful, the device remotely receives the throw and withdraw hard pressure plate control instructions sent by the distribution automation master station, and controls the throw and withdraw module to throw and withdraw the hard pressure plate, thereby realizing power failure communication reconnection and remote throw and withdraw hard pressure plate intelligent control, reducing the difficulty of operation and maintenance, and improving work efficiency and personal equipment safety.

[0060] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0062] Figure 1 It is a module schematic diagram of a remote hard pressure plate control device provided by an embodiment of the present invention.

[0063] Figure 2 It is a module schematic diagram of another remote hard pressure plate control device provided by an embodiment of the present invention.

[0064] Figure 3 It is a connection diagram of the Ethernet interface provided by an embodiment of the present invention.

[0065] Figure 4 It is a flow chart of a communication multiplexing control method provided by an embodiment of the present invention.

[0066] Figure 5 It is a flow chart of a method for controlling the insertion and withdrawal of a hard pressure plate provided in an embodiment of the present invention.

[0067] Figure 6 It is a flow chart of the communication status judgment steps provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0068] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0069] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0070] The embodiment of the present invention provides a remote control device for inserting and retracting a hard pressure plate. Figure 1 Schematic diagram of a module of a remote control device for inserting and retracting a hard pressure plate provided by an embodiment of the present invention. Figure 1 , remote control device for throwing and retracting hard pressure plate, including:

[0071] Control module 10, communication module 20, encryption and decryption module 30 and investment and withdrawal module 40;

[0072] The control module 10 is electrically connected to the communication module 20, the encryption and decryption module 30 and the insertion and withdrawal module 40;

[0073] The communication module 20 is used for communication connection with the distribution automation master station 11, and the encryption and decryption module 30 is used for encrypting and decrypting the communication data between the control module 10 and the distribution automation master station 11;

[0074] The control module 10 is used to execute the communication reconnection step after the device is powered on and started; wherein the communication reconnection step includes: judging whether the power-on voltage is stable, and performing a self-test on the hardware after the voltage is stable, and after the self-test passes, judging whether the communication connection between the communication module 20 and the distribution automation master station 11 is successful, and judging whether the encryption tunnel negotiation between the encryption and decryption module 30 and the distribution automation master station 11 is successful, if any one of the communication connection and the encryption tunnel negotiation is unsuccessful for n consecutive times, then re-execute the communication reconnection step after waiting for the first time length; wherein n is an integer greater than 1;

[0075] The control module 10 is also used to execute the throwing and withdrawing steps after the communication connection and the encrypted tunnel negotiation are successful, wherein the throwing and withdrawing steps include: obtaining the throwing and withdrawing hard pressure plate control instructions sent by the distribution automation master station 11, and controlling the throwing and withdrawing module 40 to throw and withdraw the hard pressure plate according to the throwing and withdrawing hard pressure plate control instructions.

[0076] Specifically, when the device is powered on, the control module 10 first detects whether the power supply voltage connected to the device is stable. When the voltage is higher than 6.7V, it is stable. After the voltage is stable, the control module 10 performs self-test on the hardware of the device, including the communication module 20, the encryption and decryption module 30, and the throw and withdraw module 40. After each module passes the self-test, the control module 10 establishes a communication connection with the distribution automation master station 11 through the communication module 20, and determines whether the communication connection is successful. After the communication connection is successful, the control module 10 negotiates the encrypted tunnel with the distribution automation master station 11 through the encryption and decryption module 30. If any of the communication connection or the encrypted tunnel negotiation is judged to be unsuccessful for n consecutive times (n is an integer greater than 1), the control module 10 will wait for 300 seconds and re-execute the communication reconnection step until the communication connection and the encrypted tunnel negotiation are successful. After the communication connection and the encrypted tunnel negotiation are successful, the control module 10 executes the throw and withdraw step. The control module 10 receives the throw and withdraw hard pressure plate control instruction sent by the distribution automation master station 11 through the communication module 20. According to the received control instruction of throwing and retracting the hard pressure plate, the control module 10 performs corresponding throwing and retracting operations on the hard pressure plate through the throwing and retracting module 40 .

[0077] The remote hard pressure plate control device provided by the embodiment of the present invention includes a control module 10, a communication module 20, an encryption and decryption module 30, and a throw and withdraw module 40; after the device is powered on and started, the communication connection between the device and the distribution automation master station is ensured to be reliable and safe through steps such as voltage stability detection, hardware self-check, communication connection judgment, and encrypted tunnel negotiation. After the communication connection and encrypted tunnel negotiation are successful, the device remotely receives the throw and withdraw hard pressure plate control instructions sent by the distribution automation master station 11, and controls the throw and withdraw module 40 to throw and withdraw the hard pressure plate, thereby realizing power failure communication reconnection and remote throw and withdraw hard pressure plate intelligent control, reducing the difficulty of operation and maintenance, and improving work efficiency and personal equipment safety.

[0078] Figure 2 Schematic diagram of another module of a remote control device for inserting and retracting a hard pressure plate provided by an embodiment of the present invention. Figure 2 The communication module 20 includes at least one of a 4G wireless interface 21 , an RS232 debugging interface 22 , an RS485 interface 23 , an Ethernet interface 24 and an optical fiber interface 25 .

[0079] in, Figure 3 Schematic diagram of the connection of the Ethernet interface provided by the embodiment of the present invention. Figure 3 The hard pressure plate is a relay protection pressure plate of the power grid, and is a connecting piece installed on the relay protection screen. The closed hard pressure plate indicates that the relay protection is put into use, and the open hard pressure plate indicates that the relay protection is out of use. Among them, the Ethernet interface 24 (inside) indicates that the hard pressure plate is connected downward, and the Ethernet interface 24 (outside) indicates that the distribution automation master station 11 is connected upward.

[0080] Specifically, remote control of the hard pressure plate is realized through remote communication interfaces such as the 4G wireless interface 21, the Ethernet interface 24, and the optical fiber interface 25. The communication capability and fault tolerance of the device are improved by adopting a variety of communication interface designs. The device sends the status feedback signal of the hard pressure plate to the distribution automation master station 11 system through the communication module 20. Real-time monitoring and remote confirmation of the status of the hard pressure plate are realized, which improves the safety and reliability of the system.

[0081] Figure 4 is a flow chart of a communication multiplexing control method provided by an embodiment of the present invention. Figure 4 , the communication module 20 communicates with the distribution automation master station 11 through the SIM card;

[0082] The communication reconnection steps specifically include:

[0083] S1-1: After the device is powered on, it will count down for 10 seconds to determine whether the voltage is stable. If so, it will execute S1-2, otherwise it will execute S1-11;

[0084] S1-2: Determine whether the hardware self-test passes, if yes, execute S1-3, otherwise execute S1-4;

[0085] S1-3: Determine whether the SIM card reading result shows that there is a card. If so, execute S1-5; otherwise, execute S1-6;

[0086] S1-4: Determine whether the number of failures exceeds T1 times. If so, execute S1-11. Otherwise, T1=T1+1, and continue to execute S1-2; wherein T1 is an integer;

[0087] S1-5: Determine whether the dial-up registration is successful. If so, execute S1-7; otherwise, execute S1-8;

[0088] S1-6: Determine whether the number of failures exceeds T2 times. If so, execute S1-11. Otherwise, T2=T2+1, and continue to execute S1-3; wherein T2 is an integer;

[0089] S1-7: Determine whether the encrypted tunnel negotiation is successful. If so, execute S1-9; otherwise, execute S1-10;

[0090] S1-8: Determine whether the number of failures exceeds T3 times. If so, execute S1-11. Otherwise, T3=T3+1, and continue to execute S1-5; wherein T3 is an integer;

[0091] S1-9: The device is started successfully and the process ends;

[0092] S1-10: Determine whether the number of failures exceeds T4 times. If so, jump to S1-11, otherwise T4=T4+1, and continue to execute S1-3; where T4 is an integer;

[0093] S1-11: The device fails to start. The number of failed device startups is recorded and saved. After waiting for 300 seconds, S1-1 is executed.

[0094] Among them, the basis for judging whether the voltage is stable is: it can be triggered by low voltage input, and the voltage is about 6.7V. If the voltage is lower than 6.7V, it is unstable, and if it is higher than 6.7V, it is stable. The basis for judging whether the hardware self-test is passed is: to detect whether the hardware such as the microcontroller, communication module 20, encryption and decryption module 30 and withdrawal module 40 are normal, and the number of self-tests is set to 5 times. If all fail, it will automatically power off and restart. It can be triggered by short-circuiting the encryption and decryption module 30 pin (triggering when a low level is detected to achieve automatic power off and restart). The basis for judging whether the SIM card reading result shows that there is a card is: start reading the SIM card through the attention command (AttentionCommand, AT), obtain the SIM IMEI code and other phone card information, read the SIM card 50 times, and if it still cannot be obtained, it will automatically power off and restart. The basis for judging whether the dial-up registration is successful is: register with the operator using the phone card information through the AT command, obtain the IP, dial 4 times, and if it cannot be redialed, it will power off and restart. The basis for judging whether the encrypted tunnel negotiation is successful is: a series of negotiations such as certificate authentication and encrypted tunnel negotiation are carried out with the distribution automation master station 11 encryption gateway. The negotiation will be repeated 9 times. If the negotiation fails, it will fall back to the re-card reading stage.

[0095] Specifically, after the device is powered on and started, it is determined whether the voltage is stable after 10 seconds of timing. If the voltage is higher than 6.7V, it is determined to be stable, and the next step (S1-2) is continued. If the voltage is lower than 6.7V, it is determined to be unstable, and the process returns to step S1-1 to continue waiting for the voltage to stabilize. The device is subjected to a hardware self-test to confirm whether each hardware module is working properly. If the self-test passes, the next step (S1-3) is continued. If the self-test fails, step S1-4 is executed to determine the number of failures. If the number of hardware self-test failures does not exceed the set threshold value T1, then T1=T1+1, and step S1-2 is continued (hardware self-test is performed again). If the number of failures exceeds T1, step S1-11 is executed (device startup fails). The device attempts to read the SIM card information. If the reading result shows that there is a card, the next step (S1-5) is continued. If the reading result shows that there is no card, step S1-6 is executed to determine the number of failures. If the number of SIM card reading failures does not exceed the set threshold value T2, then T2=T2+1, and continue to execute step S1-3 (retry to read the SIM card). If the number of failures exceeds T2, execute step S1-11 (device startup failure). The device attempts to dial-up registration through the SIM card to establish a communication connection with the distribution automation master station 11. If the dial-up registration is successful, proceed to the next step (S1-7). If the dial-up registration fails, execute step S1-8 to determine the number of failures. If the number of dial-up registration failures does not exceed the set threshold value T3, then T3=T3+1, and continue to execute step S1-5 (retry dial-up registration). If the number of failures exceeds T3, execute step S1-11 (device startup failure). The device establishes an encrypted tunnel with the distribution automation master station 11 to ensure communication security. If the encryption tunnel negotiation is successful, execute step S1-9 (device startup is successful). If the negotiation fails, execute step S1-10 to determine the number of failures. If the number of encryption tunnel negotiation failures does not exceed the set threshold value T4, then T4 = T4 + 1, and continue to execute step S1-3 (retry the process starting from reading the SIM card). If the number of failures exceeds T4, execute step S1-11 (device startup failure). If the device still fails to start successfully after all the above steps, record the number of device startup failures and save it, then wait for 300 seconds, and start again from step S1-1 to repeat the entire startup process.

[0096] refer to Figure 2 , the investment and withdrawal module 40 includes an investment and withdrawal instruction execution unit 41 and an image recognition unit 42;

[0097] The throw-in and throw-out instruction execution unit 41 is used to control the electromagnetic operating mechanism of the hard pressure plate to close or open the hard pressure plate;

[0098] The image recognition unit 42 is used to capture an image of the hard pressure plate and determine the state of the hard pressure plate based on the image, wherein the state of the hard pressure plate includes the hard pressure plate being open and the hard pressure plate being closed. Specifically, the remote hard pressure plate control device receives the on / off instructions from the distribution automation master station 11. The on / off instruction execution unit 41 performs the on / off operation by controlling the electromagnetic operating mechanism of the hard pressure plate according to the received instructions. If the instruction requires the hard pressure plate to be closed, the electromagnetic operating mechanism will drive the hard pressure plate to be closed; if the instruction requires the hard pressure plate to be opened, the electromagnetic operating mechanism will drive the hard pressure plate to be opened. After the on / off operation is completed, the image recognition unit 42 starts the camera installed on the wall, and the camera takes a picture of the position of the hard pressure plate from the front. The image recognition unit 42 uses an image processing algorithm to analyze the captured image, and determines whether the hard pressure plate is closed or open through image recognition technology.

[0099] Figure 5 This is a flow chart of the method for controlling the insertion and withdrawal of the hard pressing plate provided by an embodiment of the present invention. Figure 5 The investment and withdrawal steps specifically include:

[0100] S3-1: Determine whether the control command of the hard pressure plate is received from the distribution automation master station. If yes, execute S3-2; otherwise, execute S3-1 after a delay of 5 seconds;

[0101] S3-2: Execute the communication status judgment step to judge whether the communication status between the distribution automation master station and the communication module is good;

[0102] S3-3: If the communication condition is good, execute S3-4. If the communication condition is poor, it is necessary to go to the site to insert and remove the hard pressure plate, return a null value, and end the process;

[0103] S3-4: Control the corresponding hard pressure plate of the switching module according to the switching hard pressure plate control instruction of the distribution automation master station;

[0104] S3-5: Determine whether the hard pressure plate is in place, if so, execute S3-6, otherwise execute S3-7;

[0105] S3-6: Return the information that the hard pressure plate is successfully put in and withdrawn, and end the process;

[0106] S3-7: Return the information of the failure of the hard pressure plate to be inserted or withdrawn and the image information of the hard pressure plate, and end the process.

[0107] Specifically, the remote control device for throwing and retracting the hard pressure plate is installed next to the distribution automation terminal. The device continuously monitors whether it receives the throwing and retracting hard pressure plate control instruction from the distribution automation master station 11. If the instruction is received, the next step (S3-2) is executed immediately. If the instruction is not received, the current step (S3-1) is executed again after a delay of 5 seconds, and the instruction is continued to be waited. Once the control instruction is received, the device immediately executes the communication status judgment step. It is judged whether the communication status between the distribution automation master station 11 and the communication module 20 is good. If the communication status is good, the next step (S3-4) is executed, and the control module 10 controls the throwing and retracting of the hard pressure plate according to the instruction. If the communication status is poor, it is judged that the throwing and retracting operation cannot be performed remotely, and the operation and maintenance personnel are required to go to the site to manually throw and retract the hard pressure plate. At this time, the device returns a null value, indicating that the instruction cannot be executed remotely, and the entire process ends. According to the throwing and retracting hard pressure plate control instruction sent by the distribution automation master station 11, the device controls the throwing and retracting module 40 to perform the corresponding hard pressure plate throwing and retracting operation. After the insertion and withdrawal module 40 performs the insertion and withdrawal operation, the device needs to determine whether the hard pressure plate is successfully inserted and withdrawn into place. If the hard pressure plate is successfully inserted and withdrawn into place, the device returns a message that the hard pressure plate is successfully inserted and withdrawn, indicating that the operation is completed. At this point, the entire process ends. If the hard pressure plate is not successfully inserted and withdrawn into place, the device returns a message that the hard pressure plate is inserted and withdrawn and a picture of the hard pressure plate. At this point, the entire process also ends, but subsequent manual intervention or another attempt to perform the insertion and withdrawal operation may be required.

[0108] Figure 6 is a flow chart of the communication status determination steps provided by an embodiment of the present invention. Figure 6 , the communication status determination step includes:

[0109] S4-1: Determine whether the hardware self-test has passed, if so, execute S4-2, otherwise execute S4-3;

[0110] S4-2: Determine whether the SIM card reading result shows that there is a card. If so, execute S4-4; otherwise, execute S4-5;

[0111] S4-3: Determine whether the number of failures exceeds T1 times. If so, jump to S4-10. Otherwise, T1=T1+1 and continue to execute S4-1; wherein T1 is an integer;

[0112] S4-4: Determine whether the dial-up registration is successful, if so, execute S4-6, otherwise execute S4-7;

[0113] S4-5: Determine whether the number of failures exceeds T2 times. If so, jump to S4-10, otherwise T2=T2+1, and continue to execute S4-2; wherein T2 is an integer;

[0114] S4-6: Determine whether the encrypted tunnel negotiation is successful, if so, execute S4-8, otherwise execute S4-9;

[0115] S4-7: Determine whether the number of failures exceeds T3 times. If so, jump to S4-10. Otherwise, T3=T3+1, and continue to execute S4-4; wherein T3 is an integer;

[0116] S4-8: Determine that the communication status is good and end the process;

[0117] S4-9: Determine whether the number of failures exceeds T4 times. If so, execute S4-10. Otherwise, T4=T4+1, and continue to execute S4-2; wherein T4 is an integer;

[0118] S4-10: Determine that the communication condition is poor and end the process.

[0119] Specifically, the device starts and begins to execute the communication status judgment process. Check whether the hardware components of the device are working properly. If the hardware self-test passes, execute step S4-2. If the hardware self-test fails, execute step S4-3. Read information from the SIM card module. If it is displayed that there is a card, execute step S4-4. If it is not displayed that there is a card (that is, the reading fails or the SIM card is not detected), execute step S4-5. Check and record the number of hardware self-test failures T1. If the number of failures exceeds the preset threshold value T1, execute step S4-10 (determine that the communication status is poor). If the number of failures does not exceed T1, add 1 to the value of T1, and re-execute step S4-1 (perform hardware self-test again). Establish a connection with the communication network through the communication module 20 and register. If the dial-up registration is successful, execute step S4-6. If the dial-up registration fails, execute step S4-7. Check and record the number of SIM card reading failures T2. If the number of failures exceeds the preset threshold value T2, execute step S4-10 (determine that the communication status is poor). If the number of failures does not exceed T2, the value of T2 is increased by 1, and step S4-2 is re-executed (try to read the SIM card again). The device establishes an encrypted tunnel with the equipment in the communication network. If the encrypted tunnel negotiation is successful, step S4-8 is executed (determining that the communication status is good). If the encrypted tunnel negotiation fails, step S4-9 is executed. Check and record the number of dial-up registration failures T3. If the number of failures exceeds the preset threshold value T3, step S4-10 is executed (determining that the communication status is poor). If the number of failures does not exceed T3, the value of T3 is increased by 1, and step S4-4 is re-executed (trying dial-up registration again). It is determined that the current communication status is good and the process ends. Check and record the number of encrypted tunnel negotiation failures T4. If the number of failures exceeds the preset threshold value T4, step S4-10 is executed (determining that the communication status is poor). If the number of failures does not exceed T4, the value of T4 is increased by 1, and step S4-2 is re-executed (starting from reading the SIM card again). It is determined that the current communication status is poor and the process ends.

[0120] Continue to refer Figure 2, the encryption and decryption module 30 includes an encryption unit 31 and a decryption unit 32;

[0121] The encryption unit 31 is used to encrypt information when sending information to the distribution automation master station;

[0122] The decryption unit 32 is used to decrypt the information received from the distribution automation master station and transmit it to the control module 10;

[0123] The control module 10 is a micro processing unit.

[0124] Specifically, when the remote hard pressure plate control device needs to send information to the distribution automation master station 11, the control module 10 transmits the information data to the encryption unit 31. After receiving the information data, the encryption unit 31 uses a predetermined encryption algorithm to encrypt the information data to generate an encrypted information data packet. The encrypted information data packet is sent to the distribution automation master station 11 through the communication module 20. When the control device receives the information sent by the distribution automation master station 11, the communication module 20 receives the information data. The received information data is transmitted to the decryption unit 32. After receiving the information data, the decryption unit 32 uses the same decryption algorithm as the encryption unit 31 to decrypt the received information data. The decrypted information data is restored to the original information content and then transmitted to the control module 10. The control module 10 performs corresponding operations or processing procedures according to the decrypted information content.

[0125] Optional, remote control device for throwing and retracting the hard pressure plate, also includes:

[0126] A power management module 50, a storage module 60, an indicator light 70 and a housing 80;

[0127] The power management module 50 is used to supply power to other modules in the remote hard pressure plate control device;

[0128] The storage module 60 and the indicator light 70 are electrically connected to the control module 10;

[0129] The control module 10 is used to control the status of the indicator lights according to the operating status of each module;

[0130] The control module 10 , the communication module 20 , the encryption and decryption module 30 , the insertion and withdrawal module 40 , the power management module 50 and the storage module 60 are all arranged in the housing 80 , and the indicator light 70 is arranged on the surface of the housing 80 .

[0131] The power management module 50 can convert the input DC voltage into a DC voltage within the range of 12-36V for use by various modules of the control device.

[0132] Specifically, the power management module 50 provides a stable power supply for the entire remote throw and retract hard pressure plate control device. After the device is started, the control module 10 will check the status of each module. At the same time, the control module 10 will also read the configuration information stored in the storage module 60 so as to operate according to the preset instructions or parameters. The communication module 20 establishes a communication connection with the distribution automation master station 11 system. Through this connection, the distribution automation master station 11 can send control instructions to the remote throw and retract hard pressure plate control device. The instructions received by the device will be decrypted by the encryption and decryption module 30 to ensure the security and integrity of the instructions. The decrypted instructions are passed to the control module 10. The control module 10 performs remote throw and retract operations on the hard pressure plate through the throw and retract module 40 according to the content of the instructions. After the throw and retract module 40 executes the instructions, the control module 10 will collect the operating status information of each module and control the status of the indicator light 70 according to the operating status information of each module. The status of the indicator light 70 can reflect the working status of the remote throw and retract hard pressure plate control device. The storage module 60 saves the configuration information and fault records of the remote throw and retract hard pressure plate control device. It can be used for subsequent troubleshooting, performance analysis, and system optimization.

[0133] Optionally, the indicator light 70 includes an alarm indicator light 71, a network indicator light 72, a data indicator light 73 and a power indicator light 74;

[0134] The control module 10 is used to control the state of the alarm indicator light 71 according to whether there is an abnormality in the device, control the state of the network indicator light 72 according to the communication connection state with the distribution automation master station, control the state of the data indicator light 73 according to the data transmission state with the distribution automation master station, and control the state of the power indicator light 74 according to the startup state.

[0135] Specifically, the alarm indicator light 71 has two states: a red light that is always on and an off state. When the red light is always on, it indicates that an abnormal alarm has occurred in the control device, otherwise it is in a normal state. The network indicator light 72 has two states: a green light that is always on and an off state. When the green light is always on, it indicates that the communication of the control device is normal, otherwise it is in a state of no communication connection. The data indicator light 73 has two states: a green light that flashes and an off state. When the green light is flashing, it indicates that the control device is transmitting data, otherwise it is in a state of no data transmission. The power indicator light 74 has two states: a red light that is always on and an off state. When the red light is always on, it indicates that the control device is in a working state, otherwise it is in a non-working state.

[0136] Optionally, the storage capacity of the storage module 60 is greater than 1 GB.

[0137] Specifically, the storage capacity of the storage module 60 is greater than 1 GB, which enhances the data storage capacity of the remote hard pressure plate control device and improves the reliability, flexibility and safety of the system.

[0138] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0139] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A remote control device for inserting and retracting a hard pressure plate, characterized in that: include: Control module, communication module, encryption and decryption module and investment and withdrawal module; The control module is electrically connected to the communication module, the encryption and decryption module, and the insertion and withdrawal module; The communication module is used for communication connection with the distribution automation master station, and the encryption and decryption module is used for encrypting and decrypting the communication data between the control module and the distribution automation master station; The control module is used to execute the communication reconnection step after the device is powered on; wherein the communication reconnection step includes: judging whether the power-on voltage is stable, and performing a self-check on the hardware after the voltage is stable, and after the self-check passes, judging whether the communication connection between the communication module and the distribution automation master station is successful, and judging whether the encryption tunnel negotiation between the encryption and decryption module and the distribution automation master station is successful, if any one of the communication connection and the encryption tunnel negotiation is unsuccessful for n consecutive times, then waiting for the first time length and re-executing the communication reconnection step; wherein n is an integer greater than 1; The control module is also used to execute the throwing and withdrawing steps after the communication connection and the encrypted tunnel negotiation are successful, wherein the throwing and withdrawing steps include: obtaining the throwing and withdrawing hard pressure plate control instructions sent by the distribution automation master station, and controlling the throwing and withdrawing module to throw and withdraw the hard pressure plate according to the throwing and withdrawing hard pressure plate control instructions.

2. The remote control device for inserting and retracting the hard pressure plate according to claim 1 is characterized in that: The communication module includes at least one of a 4G wireless interface, an RS232 debugging interface, an RS485 interface, an Ethernet interface and an optical fiber interface.

3. The remote control device for inserting and retracting the hard pressure plate according to claim 1 is characterized in that: The communication module communicates with the distribution automation master station via a SIM card; The communication reconnection step specifically includes: S1-1: After the device is powered on, it will count down for 10 seconds to determine whether the voltage is stable. If so, it will execute S1-2, otherwise it will execute S1-11; S1-2: Determine whether the hardware self-test passes, if yes, execute S1-3, otherwise execute S1-4; S1-3: Determine whether the SIM card reading result shows that there is a card. If so, execute S1-5; otherwise, execute S1-6; S1-4: Determine whether the number of failures exceeds T1 times. If so, execute S1-11. Otherwise, T1=T1+1, and continue to execute S1-2; wherein T1 is an integer; S1-5: Determine whether the dial-up registration is successful. If so, execute S1-7; otherwise, execute S1-8; S1-6: Determine whether the number of failures exceeds T2 times. If so, execute S1-11. Otherwise, T2=T2+1, and continue to execute S1-3; wherein T2 is an integer; S1-7: Determine whether the encrypted tunnel negotiation is successful. If so, execute S1-9; otherwise, execute S1-10; S1-8: Determine whether the number of failures exceeds T3 times. If so, execute S1-11. Otherwise, T3=T3+1, and continue to execute S1-5; wherein T3 is an integer; S1-9: The device is started successfully and the process ends; S1-10: Determine whether the number of failures exceeds T4 times. If so, jump to S1-11, otherwise T4=T4+1, and continue to execute S1-3; where T4 is an integer; S1-11: The device fails to start. The number of failed device startups is recorded and saved. After waiting for 300 seconds, S1-1 is executed.

4. The remote control device for inserting and retracting the hard pressure plate according to claim 1 is characterized in that: The investment and withdrawal module includes an investment and withdrawal instruction execution unit and an image recognition unit; The said throw-in / out instruction execution unit is used to control the electromagnetic operating mechanism of the hard pressure plate to close or open the hard pressure plate; The image recognition unit is used to capture an image of the hard pressing plate and determine the state of the hard pressing plate according to the image, wherein the state of the hard pressing plate includes the hard pressing plate being open and the hard pressing plate being closed.

5. The remote control device for throwing and retracting the hard pressure plate according to claim 4 is characterized in that: The investment and withdrawal steps specifically include: S3-1: Determine whether the control command of the hard pressure plate is received from the distribution automation master station. If yes, execute S3-2; otherwise, execute S3-1 after a delay of 5 seconds; S3-2: Execute the communication status judgment step to judge whether the communication status between the distribution automation master station and the communication module is good; S3-3: If the communication condition is good, execute S3-4. If the communication condition is poor, it is necessary to go to the site to insert and remove the hard pressure plate, return a null value, and end the process; S3-4: Control the corresponding hard pressure plate of the switching module according to the switching hard pressure plate control instruction of the distribution automation master station; S3-5: Determine whether the hard pressure plate is in place, if so, execute S3-6, otherwise execute S3-7; S3-6: Return the information that the hard pressure plate is successfully put in and withdrawn, and end the process; S3-7: Return the information of the failure of the hard pressure plate to be inserted or withdrawn and the image information of the hard pressure plate, and end the process.

6. The remote control device for throwing and retracting the hard pressure plate according to claim 5 is characterized in that: The communication status determination step comprises: S4-1: Determine whether the hardware self-test has passed, if so, execute S4-2, otherwise execute S4-3; S4-2: Determine whether the SIM card reading result shows that there is a card. If so, execute S4-4; otherwise, execute S4-5; S4-3: Determine whether the number of failures exceeds T1 times. If so, jump to S4-10. Otherwise, T1=T1+1 and continue to execute S4-1; wherein T1 is an integer; S4-4: Determine whether the dial-up registration is successful, if so, execute S4-6, otherwise execute S4-7; S4-5: Determine whether the number of failures exceeds T2 times. If so, jump to S4-10, otherwise T2=T2+1, and continue to execute S4-2; wherein T2 is an integer; S4-6: Determine whether the encrypted tunnel negotiation is successful, if so, execute S4-8, otherwise execute S4-9; S4-7: Determine whether the number of failures exceeds T3 times. If so, jump to S4-10. Otherwise, T3=T3+1, and continue to execute S4-4; wherein T3 is an integer; S4-8: Determine that the communication status is good and end the process; S4-9: Determine whether the number of failures exceeds T4 times. If so, execute S4-10. Otherwise, T4=T4+1, and continue to execute S4-2; wherein T4 is an integer; S4-10: Determine that the communication condition is poor and end the process.

7. The remote control device for inserting and retracting the hard pressure plate according to claim 1 is characterized in that: The encryption and decryption module includes an encryption unit and a decryption unit; The encryption unit is used to encrypt information when sending information to the distribution automation master station; The decryption unit is used to decrypt the information received from the distribution automation master station and transmit it to the control module; The control module is a micro processing unit.

8. The remote control device for throwing and retracting the hard pressure plate according to claim 1 is characterized in that: Also includes: Power management module, storage module, indicator light and housing; The power management module is used to supply power to other modules in the remote hard pressure plate control device; The storage module and the indicator light are electrically connected to the control module; The control module is used to control the state of the indicator light according to the operating state of each module; The control module, the communication module, the encryption and decryption module, the insertion and withdrawal module, the power management module and the storage module are all arranged in the shell, and the indicator light is arranged on the surface of the shell.

9. The remote control device for inserting and retracting the hard pressure plate according to claim 8, characterized in that: The indicator lights include an alarm indicator light, a network indicator light, a data indicator light and a power indicator light; The control module is used to control the state of the alarm indicator light according to whether there is an abnormality in the device, control the state of the network indicator light according to the communication connection state with the distribution automation master station, control the state of the data indicator light according to the data transmission state with the distribution automation master station, and control the state of the power indicator light according to the startup state.

10. The remote control device for inserting and retracting the hard pressure plate according to claim 8, characterized in that: The storage capacity of the storage module is greater than 1 GB.

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