Information warning equipment and system of transformer substation

Abstract

The invention discloses an information warning device and system of a transformer substation, and relates to the technical field of information prompting.The device comprises an information warning module and an information processing module which are electrically connected, in communication connection or fixedly connected, and the information warning module comprises at least one target signboard; the target signboard comprises an information display device and an information display auxiliary unit, and the information processing module comprises an information processing auxiliary unit; the information processing auxiliary unit is used for determining initial warning information based on an information display instruction when the information display instruction of the target signboard is received, and transmitting the initial warning information to the information display auxiliary unit; and the information display auxiliary unit is used for processing the initial warning information to obtain target warning information and controlling the information display device to display the target warning information. According to the invention, an intelligent information display mode is set, the warning information of the transformer substation can be automatically displayed, the accuracy, portability and practicability of information display are ensured, and the cost of maintenance work is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of information prompting, and in particular to information warning equipment and a system for a substation. Background Art

[0002] During the maintenance of substation equipment, signboards need to be set up near the power equipment to prevent inappropriate personnel from approaching dangerous equipment or maintenance personnel from going to the wrong maintenance work compartment, so as to ensure the personal safety of the personnel.

[0003] At present, signboards are mainly made of pre-determined plastic or acrylic plates, and the warning method is to print warning information of power equipment on the signboard. The warning information of power equipment includes but is not limited to "Stop, high voltage danger", "Do not close the switch, someone is working", "Do not close the switch, someone is working on the line", "Work here!", "Enter and exit from here!", etc. Signboards are deployed near the maintenance work compartment through card slots or hanging methods. For example, maintenance personnel fix the signboards they carry to the card slots near the compartment. However, different maintenance work requires different signboards to be deployed. The number of signboards is large, the size is small, and they are easy to lose and difficult to organize, which greatly increases the travel cost of maintenance personnel and the preparation time for maintenance work. If the maintenance personnel forget to bring the signboard, they need to return to the main station to get it, which affects the progress of the maintenance work. If the signboard is forgotten after the maintenance work, there will be a risk of misleading other maintenance personnel to enter the work compartment. Summary of the invention

[0004] The present invention provides an information warning device and system for a substation, aiming to simply, efficiently and intelligently display the warning information of the substation and improve the maintenance efficiency and safety of the substation.

[0005] According to one aspect of the present invention, there is provided an information warning device for a substation, the device comprising: an information warning module and an information processing module electrically connected, communicatively connected or fixedly connected to each other, wherein the information warning module comprises at least one target sign, the target sign comprises an information display device and an information display auxiliary unit, and the information processing module comprises an information processing auxiliary unit;

[0006] The information processing auxiliary unit is used to determine the initial warning information based on the information display instruction when receiving the information display instruction of the target sign, and transmit the initial warning information to the information display auxiliary unit;

[0007] The information display auxiliary unit is used to process the initial warning information, obtain the target warning information, and control the information display to display the target warning information.

[0008] Optionally, the initial warning information includes first initial warning information and second initial warning information, and the information display auxiliary unit includes a first information receiver, a second information receiver, a first power supply component and a first circuit, wherein the first circuit is respectively connected to the information display, the first information receiver, the second information receiver and the first power supply component; the first power supply component is used to provide power to the information display, the first information receiver, the second information receiver and the first circuit; the first information receiver is used to receive the first initial warning information transmitted by the information processing auxiliary unit; the second information receiver is used to receive the second initial warning information transmitted by the information processing auxiliary unit; the first circuit is used to process the first initial warning information and the second initial warning information to obtain target warning information, and control the information display to display the target warning information.

[0009] Optionally, the information processing module also includes a warning sign base and an information interaction unit, the information processing auxiliary unit is deployed inside the warning sign base, the information interaction unit is deployed on the first surface of the warning sign base and is communicatively connected and / or electrically connected to the information processing auxiliary unit, the first surface being the outer surface of the warning sign base that is perpendicular to the ground; wherein at least one back panel is provided on the side of the warning sign base away from the ground, and the back panel is used to connect and support the signboard; the information interaction unit is used to generate information display instructions based on the display information input by the user after the target signboard is connected to the back panel.

[0010] Optionally, a first transmitting coil and a second transmitting coil are provided on the back panel, and the information processing auxiliary unit includes a second power supply component and a second circuit, wherein the second circuit is respectively connected to the information interaction unit, the first transmitting coil, the second transmitting coil and the second power supply component; the second power supply component is used to provide electrical energy to the first power supply component, the first transmitting coil and the second transmitting coil; the second circuit is used to process the information display instruction, generate the first initial warning information and the second initial warning information, and control the first transmitting coil of the target back panel to transmit the first initial warning information to the first information receiver, and the second transmitting coil of the target back panel to transmit the second initial warning information to the second information receiver, wherein the target back panel is a back panel that connects and supports the target signboard.

[0011] Optionally, the second circuit includes a first processor, a first N-type field effect transistor, a second N-type field effect transistor, a third N-type field effect transistor, a fourth N-type field effect transistor, a first diode, a second diode, a third diode, a fourth diode, a first resistor, a first capacitor and a first relay.

[0012] Optionally, the first processor is respectively connected to the information interaction unit, the first transmitting coil, the second transmitting coil and the first relay; the first end of the first N-type field effect transistor is respectively connected to the first end of the second power supply component, the first end of the first diode and the first end of the third N-type field effect transistor, and the second end of the first N-type field effect transistor is respectively connected to the third end of the first N-type field effect transistor, the second end of the first diode, the first end of the first capacitor, the first end of the second N-type field effect transistor and the first end of the second diode; the second end of the third N-type field effect transistor is respectively connected to the third end of the third N-type field effect transistor, the second end of the third diode, the first end of the fourth N-type field effect transistor, the first end of the fourth diode and the first end of the first transmitting coil; the second end of the first transmitting coil is connected to the second end of the first capacitor; the second end of the fourth N-type field effect transistor is respectively connected to the third end of the fourth N-type field effect transistor, the second end of the fourth diode, the second end of the second N-type field effect transistor, the third end of the second N-type field effect transistor, the second end of the second diode and the second end of the second power supply component; the first end of the second transmitting coil is connected to the second end of the second power supply component through the first resistor, and the second end of the second transmitting coil is connected to the first end of the second power supply component through the first relay.

[0013] Optionally, the first circuit includes a second processor, a second capacitor, a third capacitor, a second resistor, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a second relay and a third relay; wherein the ninth diode is a voltage-stabilizing diode.

[0014] Optionally, the first end of the fifth diode is respectively connected to the first end of the seventh diode, the first end of the second relay and the first end of the third relay, and the first end of the fifth diode is connected to the first end of the second capacitor and the first end of the sixth diode; the second end of the sixth diode is respectively connected to the second end of the eighth diode, the second end of the ninth diode and the second end of the first power supply component; the first end of the eighth diode is respectively connected to the second end of the seventh diode and the second end of the first information receiver, and the first end of the first information receiver is connected to the second end of the second capacitor; the second end of the second relay is respectively connected to the first end of the ninth diode, the second end of the third relay and the first end of the second processor, the second end of the second processor is respectively connected to the first end of the second resistor, the first end of the third capacitor and the first end of the second information receiver, the third end of the second processor is respectively connected to the first end of the first power supply component, the second end of the second resistor and the third end of the second information receiver, and the second end of the second information receiver is respectively connected to the second end of the third capacitor and the second end of the first power supply component.

[0015] Optionally, the information display auxiliary unit also includes an environmental information detection unit, which is used to determine the environmental data of the target sign and send the environmental data to the second processor so that the second processor can adjust the display brightness of the information display; wherein the environmental information detection unit includes a third resistor and a fourth resistor, and the third resistor is a photoresistor; the first end of the third resistor is connected to the second end of the first power supply component, the second end of the third resistor is respectively connected to the first end of the fourth resistor, the fourth end of the second processor and the first end of the fourth resistor, and the second end of the fourth resistor is connected to the first end of the second power supply component and the third end of the second processor.

[0016] According to another aspect of the present invention, there is provided an information warning system for a substation, the system comprising the information warning device for a substation in the present invention.

[0017] The information warning device of the substation of the present invention comprises: an information warning module and an information processing module which are electrically connected, communicatively connected or fixedly connected to each other, wherein the information warning module comprises at least one target signboard, the target signboard comprises an information display device and an information display auxiliary unit, and the information processing module comprises an information processing auxiliary unit; the information processing auxiliary unit is used to determine the initial warning information based on the information display instruction when receiving the information display instruction of the target signboard, and transmit the initial warning information to the information display auxiliary unit; the information display auxiliary unit is used to process the initial warning information, obtain the target warning information, and control the information display device to display the target warning information. The technical scheme of the present invention sets an intelligent information display method, and the information display auxiliary unit parses the information display instruction of the target signboard input by the user, obtains the initial warning information, and transmits the initial warning information to the information display auxiliary unit, so that the information display auxiliary unit processes the initial warning information, obtains the target warning information, and controls the information display device to display the target warning information, aiming to automatically display the warning information of the substation, ensure the accuracy of the information display, and does not require the maintenance personnel to carry any information board, saving the cost of maintenance work and improving the portability and practicality of the warning work. It solves the problem of large number of signboards, small size, easy loss and difficulty in organization, which greatly increases the travel costs of maintenance personnel and the preparation time for maintenance work. If the maintenance personnel forget to bring the signboards, they need to return to the main station to get them, which affects the progress of the maintenance work. If they forget to collect the signboards after the maintenance work, there will be a risk of misleading other maintenance personnel into the work compartment.

[0018] 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

[0019] In order to more clearly illustrate the technical solutions in the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below 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.

[0020] Figure 1 It is a structural schematic diagram of an information warning device for a substation provided by the present invention;

[0021] Figure 2 It is a structural schematic diagram of another information warning device for a substation provided by the present invention;

[0022] Figure 3 It is a structural schematic diagram of a target sign provided by the present invention;

[0023] Figure 4 It is a structural schematic diagram of a backplane provided by the present invention;

[0024] Figure 5 It is a schematic diagram of the connection relationship of components of an information warning device for a substation provided by the present invention;

[0025] Figure 6 It is a communication timing diagram of an information warning device of a substation provided by the present invention.

[0026] Reference numerals:

[0027] 1-information warning module, 11-target sign, 111-information display, 112-information display auxiliary unit, 1121-first information receiver, 1122-second information receiver, 1123-first power supply component, 1124-first circuit, 2 information processing module, 21-information processing auxiliary unit, 211-information interaction unit, 212-warning sign base, 213-back plate, 214-second power supply component, 215-second circuit, 216-first transmitting coil, 217-second transmitting coil. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0029] 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.

[0030] Figure 1 This is a schematic diagram of the structure of a substation information warning device provided by the present invention. This embodiment can be applied to the simple, accurate and high-quality display of substation warning information, etc. Figure 1 The device specifically includes: an information warning module 1 and an information processing module 2 which are electrically connected, communicatively connected or fixedly connected to each other, wherein the information warning module 1 includes at least one target sign 11, the target sign 11 includes an information display 111 and an information display auxiliary unit 112, and the information processing module 2 includes an information processing auxiliary unit 21; the information processing auxiliary unit 21 is used to determine the initial warning information based on the information display instruction when receiving the information display instruction of the target sign 11, and transmit the initial warning information to the information display auxiliary unit 112; the information display auxiliary unit 112 is used to process the initial warning information, obtain the target warning information, and control the information display 111 to display the target warning information.

[0031] The present invention aims to design a wireless intelligent substation sign device. On the one hand, it does not require staff to carry cards, saving staff workload and preparation time for maintenance work; on the other hand, the display information on the target sign can be set according to the work task, so as to display the warning information of the substation in a personalized way. It is worth noting that the present invention can set the display time of the display information on the target sign according to the work task, so that when the display time countdown ends, the staff is reminded that the target sign expires, so that the staff can store the target sign in time, and other staff can also be warned of the working conditions of the work area corresponding to the target sign.

[0032] Among them, the information processing module can be understood as a receiving, preprocessing and transmitting device for information to be displayed, the information warning module can be understood as a processing and display device for information warning equipment, the target signboard can be understood as an intelligent information display board, the information display device can be understood as the dynamic working information on the intelligent information display board, the information display device includes but is not limited to a digital tube and an LCD display screen, the dynamic working information includes but is not limited to a work group, work type and working hours, the information display auxiliary unit can be understood as a component that receives and processes the warning information transmitted by the information processing module, determines the display information of the information display device (i.e., the target warning information) according to the processing results, and controls the information display device to display the information. The information display instruction can be understood as information sent by the user containing display requirements, and the display requirements include but are not limited to work groups, work types and working hours. The initial warning information can be understood as binary information related to the display requirements that can be recognized by the computer after parsing the display requirements.

[0033] The advantage of such a setting is that the warning information of the substation can be automatically displayed, the accuracy of the information display can be ensured, and the maintenance personnel do not need to carry any information signs, which saves the cost of maintenance work and improves the portability and practicality of the warning work. Secondly, the information warning module of the present invention includes at least one target sign, that is, the information warning module can be connected to multiple warning signs, thereby realizing the display of multiple information and improving the information viewing experience of the staff.

[0034] Optionally, the initial warning information includes first initial warning information and second initial warning information. Figure 2 is a structural schematic diagram of another information warning device for a substation provided by the present invention, Figure 3 This is a schematic diagram of the structure of a target sign provided by the present invention. Figure 4 This is a schematic diagram of the structure of a backplane provided by the present invention, combined with Figure 2 , Figure 3 and Figure 4It can be seen that the information display auxiliary unit 112 includes a first information receiver 1121, a second information receiver 1122, a first power supply component 1123 and a first circuit 1124. The information processing module 2 also includes a warning sign base 212 and an information interaction unit 211. The information processing auxiliary unit 21 is disposed inside the warning sign base 212. The information interaction unit 211 is disposed on the first surface of the warning sign base 212 and is communicatively connected and / or electrically connected to the information processing auxiliary unit 21. The first surface is an outer surface of the warning sign base 212 that is perpendicular to the ground. The warning sign base 212 is provided with at least one back plate 213 on the side away from the ground. The back plate 213 is used to connect and support the sign. The information interaction unit 211 is used to generate an information display instruction based on the display information input by the user after the target sign 11 is connected to the back plate 2. The back plate 213 is provided with a first transmitting coil 216 and a second transmitting coil 217. The information processing auxiliary unit 21 includes a second power supply component 214 and a second circuit 215.

[0035] The first information receiver may be a wireless receiving coil, the second information may be a Kirchhoff sensor, the first transmitting coil and the second transmitting coil may be wireless transmitting coils, the information display may be a liquid crystal digital display, the first power supply component may be a lithium battery, and the second power supply component may be a rectifier, which is used to convert the AC 220V mains power into 5V DC power to power the warning sign base. The information interaction unit may be a key input board, which may interact with the duty officer and receive the digital number information and / or working time information input by the duty officer. For example, three different numbers may be set respectively, representing that three different teams are working at the location, and different working hours may be set. After the countdown is over, the processing component controls the alarm to emit an audible and visual alarm. The second circuit includes a microprocessor and a full-bridge inverter circuit.

[0036] Specifically, the first circuit is respectively connected to the information display, the first information receiver, the second information receiver and the first power supply component; the first power supply component is used to provide power to the information display, the first information receiver, the second information receiver and the first circuit; the first information receiver is used to receive the first initial warning information transmitted by the information processing auxiliary unit; the second information receiver is used to receive the second initial warning information transmitted by the information processing auxiliary unit; the first circuit is used to process the first initial warning information and the second initial warning information to obtain the target warning information, and control the information display to display the target warning information. The second circuit is respectively connected to the information interaction unit, the first transmitting coil, the second transmitting coil and the second power supply component; the second power supply component is used to provide power to the first power supply component, the first transmitting coil and the second transmitting coil; the second circuit is used to process the information display instruction, generate the first initial warning information and the second initial warning information, and control the first transmitting coil of the target backplane to transmit the first initial warning information to the first information receiver, and the second transmitting coil of the target backplane to transmit the second initial warning information to the second information receiver, wherein the target backplane is the backplane that connects and supports the target sign.

[0037] The present invention innovatively proposes a circuit structure and communication strategy that can realize wireless charging and wireless communication at the same time, and cooperates with Kirchhoff sensors to realize wireless coil reuse, that is, the wireless coil is responsible for wireless charging in charging mode, and the wireless coil is responsible for communication in communication mode. For example, the wireless transmitting coil 217 generates a magnetic field, and the Kirchhoff sensor 1122 on the sign body monitors the magnetic field signal, the wireless transmitting coil 216 produces a changing magnetic field, and the wireless receiving coil 1121 on the sign body generates an induced electromotive force. While transmitting energy, it also has a communication function in conjunction with the opening and closing of the relay in the information display auxiliary unit.

[0038] Optionally, the information display auxiliary unit further includes an environmental information detection unit, which is used to determine environmental data of the target sign and send the environmental data to the second processor so that the second processor adjusts the display brightness of the information display.

[0039] Among them, the environmental data of the target sign can be understood as the brightness information of the location of the target sign. When the target sign is in a night environment or an environment with poor brightness, the backlight function is turned on to improve the readability of the warning information.

[0040] It is worth noting that the second circuit includes a first processor, a first N-type field effect transistor Q1, a second N-type field effect transistor Q2, a third N-type field effect transistor Q3, a fourth N-type field effect transistor Q4, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a first resistor R1, a first capacitor C1 and a first relay S1. The first circuit includes a second processor, a second capacitor C2, a third capacitor C3, a second resistor R2, a fifth diode D5, a sixth diode D6, a seventh diode D7, an eighth diode D8, a ninth diode D9, a second relay S2 and a third relay S3; wherein the ninth diode D9 is a voltage-stabilizing diode. The environmental information detection unit includes a third resistor R9 and a fourth resistor R4, and the third resistor R3 is a photoresistor.

[0041] Figure 5 This is a schematic diagram of the connection relationship of components of an information warning device for a substation provided by the present invention. Figure 5The part within the blue dotted box is the connection relationship of the information processing module, that is, the circuit part of the warning sign base, including but not limited to the connecting parts of the second circuit and the second circuit. The part outside the blue dotted box is the connection relationship of the information warning module, including but not limited to the connection relationship between the first circuit and the first circuit. The red dotted box represents the transmitting circuit of the second transmitting coil, U1 represents the 5V DC voltage output by the second power supply component, +5V represents the voltage output by the first power supply component (lithium battery in the figure), INT1 represents the first end of the second processor, INT2 represents the second end of the second processor, ADC represents the third end of the second processor, A3144 represents the second information receiver, L1 represents the first transmitting coil, L2 represents the first information receiver, and L3 represents the second transmitting coil. As can be seen from the figure, the first processor is respectively connected to the information interaction unit, the first transmitting coil, the second transmitting coil and the first relay; the first end of the first N-type field effect transistor is respectively connected to the first end of the second power supply component, the first end of the first diode and the first end of the third N-type field effect transistor, and the second end of the first N-type field effect transistor is respectively connected to the third end of the first N-type field effect transistor, the second end of the first diode, the first end of the first capacitor, the first end of the second N-type field effect transistor and the first end of the second diode; the second end of the third N-type field effect transistor is respectively connected to the third end of the third N-type field effect transistor, the second end of the third diode, the first end of the fourth N-type field effect transistor, the first end of the fourth diode and the first end of the first transmitting coil; the second end of the first transmitting coil is connected to the second end of the first capacitor; the second end of the fourth N-type field effect transistor is respectively connected to the third end of the fourth N-type field effect transistor, the second end of the fourth diode, the second end of the second N-type field effect transistor, the third end of the second N-type field effect transistor, the second end of the second diode and the second end of the second power supply component; the first end of the second transmitting coil is connected to the second end of the second power supply component through the first resistor, and the second end of the second transmitting coil is connected to the first end of the second power supply component through the first relay.The first end of the fifth diode is connected to the first end of the seventh diode, the first end of the second relay and the first end of the third relay respectively, and the first end of the fifth diode is connected to the first end of the second capacitor and the first end of the sixth diode; the second end of the sixth diode is connected to the second end of the eighth diode, the second end of the ninth diode and the second end of the first power supply component respectively; the first end of the eighth diode is connected to the second end of the seventh diode and the second end of the first information receiver respectively, and the first end of the first information receiver is connected to the second end of the second capacitor; the second end of the second relay is connected to the first end of the ninth diode, the second end of the third relay and the first end of the second processor respectively, the second end of the second processor is connected to the first end of the second resistor, the first end of the third capacitor and the first end of the second information receiver respectively, the third end of the second processor is connected to the first end of the first power supply component, the second end of the second resistor and the third end of the second information receiver respectively, and the second end of the second information receiver is connected to the second end of the third capacitor and the second end of the first power supply component respectively. The first end of the third resistor is connected to the second end of the first power supply component, the second end of the third resistor is connected to the first end of the fourth resistor, the fourth end of the second processor and the first end of the fourth resistor respectively, and the second end of the fourth resistor is connected to the first end of the second power supply component and the third end of the second processor. The port numbers and partial connection relationships of each component are not shown in the figure.

[0042] Specifically, Q1, Q2, Q3 and Q4 form a full-bridge inverter circuit, C1 and L1 form an LC wireless transmission circuit, R1 is a current limiting resistor, S1 is a relay, and the on and off of S1 is controlled by the first processor. L2 and C2 form an LC wireless receiving circuit, the on and off of S2 and S3 are controlled by the second processor, D5, D6, D7 and D8 form a full-bridge rectifier circuit, D9 is a voltage regulator diode with a stable voltage of 5V, A3144 is a Hall switch sensor (pin 1 outputs a high level when a magnetic field is detected), C3 is a filter capacitor, R2 is a pull-up resistor, R3 is a photoresistor, and R4 is a series resistor.

[0043] Figure 5 The circuit can be used in communication mode or charging mode. The communication mode is used to transmit information so that the signboard can display warning information. The charging mode is used to charge the lithium battery of the signboard to ensure that there is sufficient power for the display of the warning information. For example, after the display work is completed, the signboard will be placed in a storage area for charging.

[0044] In one embodiment, in charging mode, the second processor and the first processor coordinate to control S2 to close and S1 and S3 to open, Q1 and Q4 form a group, Q2 and Q3 form a group, and the second processor controls the two groups of switch tubes to be turned on alternately, L1 flows through AC, L2 generates an induced voltage, and then through full-bridge rectification, a DC voltage is generated at both ends of the lithium battery to achieve charging. It is intended to achieve automatic wireless charging after the on-duty personnel recover the sign and place it on the sign base (i.e., the warning sign base), without the need for manual plug-in charging, saving the cost of manual maintenance and charging work.

[0045] In another embodiment, after the duty officer (i.e., the staff of the substation) receives the task of arranging the on-site signboard, he first enters the digital number of the work team (e.g., 1, 2, 3, 1 and 4, 6 and 8, 5 and 7, etc.) and the expected working time (e.g., 48 hours, 24 hours, 72 hours, etc.) in the key input board of the signboard base. After receiving the information input by the duty officer, the processor of the signboard base (i.e., the first processor) processes the information and transmits the processed information to the signboard processor (equivalent to the second processor). The communication process is: the signboard base processor controls S1 to close, the signboard processor controls S2 to disconnect, and the charging work of the lithium battery of the signboard is ended. The information is input to the second processor via the voltage-stabilizing diode VD5 and the INT1 pin.

[0046] Figure 6 This is a communication sequence diagram of a substation information warning device provided by the present invention. Figure 6 To further elaborate on the communication process, the yellow dotted line in the figure is used to indicate the position of the time t1 in the relationship diagram of the change of each parameter. Assume that at time t1, the first processor and the second processor jointly control S3, Q1 and Q4 to close, and control S3, Q1 and Q4 to open after a delay of Δt1. L3 generates a magnetic field through current, and the A3144 Hall sensor detects the magnetic field. Pin 1 outputs a high level, which is input to the interrupt pin INT2 of the second processor, triggering the second processor interrupt and entering the interrupt program. The interrupt program then issues a command to detect the INT1 level state. It takes a certain amount of time from establishing the magnetic field to A3144 detecting the change in the magnetic field and then to the interrupt program issuing a command to detect the INT1 level state. The required time is directly related to the size of L3. Here, the time to detect the level is set to t3 to indicate the delay. On the other hand, since Q1 and Q4 are also closed at time t1, combined with Figure 5, a current pulse flows through L1, and L2 generates an induced voltage. At t2, the level of the INT1 pin changes to a high level, and drops back to a low level after Δt2. By setting a certain delay in the interrupt program, t3 can be set between [t2, Δt2]. It is worth noting that D9 is a voltage-stabilizing diode. The advantage of this setting is that the voltage input to the INT1 pin can be clamped at 5V to avoid overvoltage. On the other hand, at t3, the second processor detects that the INT1 pin is at a high level, which represents 1. In the interrupt program, 1 is recorded in the binary variable, thus completing the process of the sign base processor passing a 1 to the sign processor. Similarly, in the next cycle, at t4, the first processor and the second processor cooperate to control S3 to close and Q1 and Q4 to disconnect. At t5, the INT1 pin can be detected to be at a low level, which represents 0. In the interrupt program, 0 continues to be recorded in the binary variable. Such a cycle can achieve the purpose of transmitting a string of binary numbers consisting of 0s and 1s from the sign base processor to the sign processor, completing one-way communication. The sign processor can parse the binary number to obtain the work team number (such as 1, 2, 3, 5, 7, 4 and 6, etc.), estimated working time and other information entered by the duty officer, control the LCD digital display to display the parsed information, and control the buzzer and warning LED light to emit sound and light alarm after the countdown ends, reminding the on-site duty officer to recycle the sign to avoid misleading other staff to go to the wrong interval.

[0047] Specifically, before the communication is completed and the working countdown ends, in order to realize that the liquid crystal back panel of the signboard can automatically emit light at night, the present invention sets an ambient brightness detection circuit, see Figure 5 R3 is a photoresistor. R3 and R4 form a series voltage divider circuit. When the ambient brightness changes, the resistance of R3 will change, and the ADC pin voltage will also change. The second processor can convert the analog voltage into a digital quantity through ADC sampling, and then use a pre-set program to achieve the purpose of turning on the LCD panel light when the ambient brightness is lower than the set threshold.

[0048] The technical solution of this embodiment sets up an intelligent information display method, and the information display instruction of the target signboard input by the user is parsed by the information processing auxiliary unit to obtain the initial warning information, and the initial warning information is transmitted to the information display auxiliary unit, so that the information display auxiliary unit processes the initial warning information, obtains the target warning information, and controls the information display device to display the target warning information, aiming to automatically display the warning information of the substation, ensure the accuracy of the information display, and does not require maintenance personnel to carry any information signs, saving the cost of maintenance work and improving the portability and practicality of the warning work. It solves the problem that the number of signboards is large, the size is small, and it is easy to lose and difficult to organize, which greatly increases the travel cost of maintenance personnel and the preparation time for maintenance work. If the maintenance personnel forget to bring the signboard, they need to return to the main station to get it, which affects the progress of the maintenance work. If the signboard is forgotten after the maintenance work, there will be a risk of misleading other maintenance personnel to enter the work compartment.

[0049] The present invention also provides an information warning system for a substation, and this embodiment can be applied to the situation of displaying substation warning information in a simple, accurate and high-quality manner. The system comprises: a substation work compartment and any one of the substation information warning devices in the above embodiments.

[0050] Among them, the equipment to be maintained of the substation is set in the working compartment of the substation, and the information warning equipment of the substation is deployed outside the working compartment of the substation to display the information of the working compartment of the substation, including but not limited to the working time period, work type, work team, entry and exit methods, etc. of the working compartment of the substation.

[0051] The information warning system of the substation in this embodiment includes the information warning device of any substation in the above embodiments. The information warning device of the substation in this system can determine and display the target warning information according to the information display instruction input by the user when the work compartment of the substation needs to display the warning information, so as to facilitate the maintenance personnel to carry out the maintenance work of the equipment to be maintained, and greatly improve the work efficiency of the operation and maintenance personnel and the safety of the substation. It solves the problem that the number of signboards is large, the size is small, it is easy to lose, and it is difficult to organize, which greatly increases the travel cost of maintenance personnel and the preparation time of maintenance work. If the maintenance personnel forget to bring the signboard, they need to return to the main station to get it, which affects the progress of the maintenance work. If the signboard is forgotten after the maintenance work, there will be a risk of misleading other maintenance personnel to enter the work compartment. Problems such as. Further, the information warning system of the substation provided in this embodiment includes the information warning device of the substation in the above embodiment, and has the corresponding beneficial effects of the information warning device of the above substation.

[0052] 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.

[0053] 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. An information warning device for a substation, characterized in that: include: An information warning module and an information processing module electrically, communicatively or fixedly connected to each other, wherein the information warning module comprises at least one target sign, the target sign comprises an information display device and an information display auxiliary unit, and the information processing module comprises an information processing auxiliary unit; The information processing auxiliary unit is used to determine the initial warning information based on the information display instruction when receiving the information display instruction of the target sign, and transmit the initial warning information to the information display auxiliary unit; The information display auxiliary unit is used to process the initial warning information, obtain target warning information, and control the information display device to display the target warning information.

2. The device according to claim 1, characterized in that The initial warning information includes first initial warning information and second initial warning information, and the information display auxiliary unit includes a first information receiver, a second information receiver, a first power supply component and a first circuit, wherein the first circuit is respectively connected to the information display, the first information receiver, the second information receiver and the first power supply component; The first power supply component is used to provide power to the information display device, the first information receiver, the second information receiver and the first circuit; The first information receiver is used to receive the first initial warning information transmitted by the information processing auxiliary unit; The second information receiver is used to receive the second initial warning information transmitted by the information processing auxiliary unit; The first circuit is used to process the first initial warning information and the second initial warning information to obtain the target warning information, and control the information display device to display the target warning information.

3. The device according to claim 2, characterized in that The information processing module also includes a warning sign base and an information interaction unit, the information processing auxiliary unit is disposed inside the warning sign base, the information interaction unit is disposed on a first surface of the warning sign base and is communicatively connected and / or electrically connected to the information processing auxiliary unit, and the first surface is an outer surface of the warning sign base that is perpendicular to the ground; Wherein, at least one back plate is provided on the side of the warning sign base away from the ground, and the back plate is used to connect and support the sign; The information interaction unit is used to generate the information display instruction based on the display information input by the user after the target sign is connected to the back panel.

4. The device according to claim 3, characterized in that The back panel is provided with a first transmitting coil and a second transmitting coil, and the information processing auxiliary unit includes a second power supply component and a second circuit, wherein the second circuit is respectively connected to the information interaction unit, the first transmitting coil, the second transmitting coil and the second power supply component; The second power supply component is used to provide electrical energy to the first power supply component, the first transmitting coil and the second transmitting coil; The second circuit is used to process the information display instruction, generate the first initial warning information and the second initial warning information, and control the first transmitting coil of the target backboard to transmit the first initial warning information to the first information receiver, and the second transmitting coil of the target backboard to transmit the second initial warning information to the second information receiver, wherein the target backboard is a backboard connected to and supporting the target signboard.

5. The device according to claim 4, characterized in that The second circuit includes a first processor, a first N-type field effect transistor, a second N-type field effect transistor, a third N-type field effect transistor, a fourth N-type field effect transistor, a first diode, a second diode, a third diode, a fourth diode, a first resistor, a first capacitor and a first relay.

6. The device according to claim 5, characterized in that The first processor is respectively connected to the information interaction unit, the first transmitting coil, the second transmitting coil and the first relay; the first end of the first N-type field effect transistor is respectively connected to the first end of the second power supply component, the first end of the first diode and the first end of the third N-type field effect transistor, and the second end of the first N-type field effect transistor is respectively connected to the third end of the first N-type field effect transistor, the second end of the first diode, the first end of the first capacitor, the first end of the second N-type field effect transistor and the first end of the second diode; the second end of the third N-type field effect transistor is respectively connected to the third end of the third N-type field effect transistor, the second end of the third diode, the first end of the fourth N-type field effect transistor, the first end of the fourth diode and the first end of the first transmitting coil; the second end of the first transmitting coil is connected to the second end of the first capacitor; the second end of the fourth N-type field effect transistor is respectively connected to the third end of the fourth N-type field effect transistor, the second end of the fourth diode, the second end of the second N-type field effect transistor, the third end of the second N-type field effect transistor, the second end of the second diode and the second end of the second power supply component; the first end of the second transmitting coil is connected to the second end of the second power supply component through the first resistor, and the second end of the second transmitting coil is connected to the first end of the second power supply component through the first relay.

7. The device according to claim 6, characterized in that The first circuit includes a second processor, a second capacitor, a third capacitor, a second resistor, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a ninth diode, a second relay and a third relay; Wherein, the ninth diode is a voltage stabilizing diode.

8. The device according to claim 7, characterized in that The first end of the fifth diode is respectively connected to the first end of the seventh diode, the first end of the second relay and the first end of the third relay, and the first end of the fifth diode is connected to the first end of the second capacitor and the first end of the sixth diode; the second end of the sixth diode is respectively connected to the second end of the eighth diode, the second end of the ninth diode and the second end of the first power supply component; the first end of the eighth diode is respectively connected to the second end of the seventh diode and the second end of the first information receiver, and the first end of the first information receiver is connected to the second end of the second capacitor; the second end of the second relay is respectively connected to the first end of the ninth diode, the second end of the third relay and the first end of the second processor, the second end of the second processor is respectively connected to the first end of the second resistor, the first end of the third capacitor and the first end of the second information receiver, the third end of the second processor is respectively connected to the first end of the first power supply component, the second end of the second resistor and the third end of the second information receiver, and the second end of the second information receiver is respectively connected to the second end of the third capacitor and the second end of the first power supply component.

9. The device according to claim 8, characterized in that The information display auxiliary unit further includes an environmental information detection unit, which is used to determine environmental data of the target sign and send the environmental data to the second processor so that the second processor adjusts the display brightness of the information display; Wherein, the environmental information detection unit includes a third resistor and a fourth resistor, and the third resistor is a photoresistor; The first end of the third resistor is connected to the second end of the first power supply component, the second end of the third resistor is respectively connected to the first end of the fourth resistor, the fourth end of the second processor and the first end of the fourth resistor, and the second end of the fourth resistor is connected to the first end of the second power supply component and the third end of the second processor.

10. An information warning system for a substation, characterized in that: include: The information warning device of the substation according to any one of claims 1 to 9.

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