Secondary equipment state non-electric quantity acquisition device based on expert knowledge base

Abstract

The utility model discloses a secondary equipment state non-electric quantity acquisition device based on an expert knowledge base, which comprises a state acquisition device, a computer key, secondary equipment, a secondary equipment sensor, a monitoring controller and an upper computer, the secondary equipment sensor transmits a secondary equipment state signal to the state collector; the state collector uploads the state information of the secondary equipment to the monitoring controller and the upper computer; wherein the state collector is further provided with a computer key interface, and the computer key interface reads a preset operation sequence of a computer key and issues operation prompt information to the secondary equipment sensor, so that the problem that the state of the secondary equipment cannot be collected and monitored in real time is solved; moreover, when the pressing plate, the air switch and the handle are subjected to abnormal displacement operation, the state collector can give an audible and visual alarm prompt, so that the pressing plate is effectively prevented from being mistakenly put or withdrawn in the operation process of the on-site secondary equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of secondary equipment status collection in power systems, and in particular relates to a secondary equipment status non-electricity collection device based on an expert knowledge base. Background Art

[0002] With the comprehensive application of smart substations, leakage, incorrect switching or violation of operation sequence of relay protection pressure plates occur frequently, which directly affects the safe and stable operation of the power grid. The current substation microcomputer anti-error system only realizes the anti-error risk control of primary equipment switching operations, and secondary equipment has not yet realized operation error prevention.

[0003] The main reasons include: since secondary equipment generally refers to relay protection, measurement and control, safety automatic devices and their associated hard pressure plates, circuit breakers, handles, etc., the status of some hard pressure plates, circuit breakers, and handles of the secondary equipment cannot be collected and monitored in real time, resulting in the secondary equipment status not being associated with the operating mode, and it is impossible to timely discover secondary equipment such as leakage or incorrectly placed or withdrawn pressure plates; there are no anti-error measures during the on-site secondary equipment operation process, and there is a possibility of incorrect placement or withdrawal. Utility Model Content

[0004] The purpose of the utility model is to provide a non-electrical quantity collection device for the status of secondary equipment based on an expert knowledge base, which not only solves the problem that the status of secondary equipment cannot be collected and monitored in real time, but also when the pressure plate, circuit breaker and handle are abnormally displaced, the status collector will have an audible and visual alarm prompt, effectively avoiding the wrong placement or withdrawal of the pressure plate during the operation of the secondary equipment on site.

[0005] The utility model adopts the following technical solution: the utility model is based on the Hall induction principle and collects non-electrical signals of secondary device status in real time. The technical solution adopted is: a secondary device status non-electrical signal collection device based on an expert knowledge base, including a status collector, a computer key, a secondary device, a secondary device sensor, a monitoring controller and a host computer. The secondary device has a built-in magnetic steel induction accessory, and the magnetic steel induction accessory is connected to the secondary device sensor. The secondary device sensor converts the change of the secondary device status into a switch signal output and transmits it to the status collector through an RS-485 cable; the status collector sends the secondary device status information to the monitoring controller through the RS-485 cable, and the monitoring controller summarizes all secondary device statuses and uploads it to the host computer; wherein, the status collector is also provided with a computer key interface, and the computer key interface communicates with the computer key, reads the operation sequence preset by the computer key, and sends operation prompt information to the secondary device sensor.

[0006] Furthermore, the secondary equipment includes a pressure plate, a circuit breaker and a handle.

[0007] Furthermore, the pressure plate, circuit breaker and handle are arranged on the power panel cabinet.

[0008] Furthermore, the status collector is a DCZL13-GW2DXC type collector.

[0009] Furthermore, the secondary device sensor is a Hall sensor.

[0010] Furthermore, the host computer is provided with a secondary equipment error prevention system based on an expert knowledge base.

[0011] The beneficial effects of the utility model are:

[0012] The utility model has a built-in magnetic steel induction accessory in the secondary equipment. The corresponding induction accessory excites the corresponding sensor module through magnetic induction. The sensor module converts the change of the corresponding secondary equipment state into a switch signal output, which is transmitted to the state collector through the RS-485 cable. The state collector sends the secondary equipment state information to the monitoring controller, thereby realizing real-time collection and monitoring of the secondary equipment state.

[0013] The utility model sets a computer key interface on the status collector, and the computer key interface communicates with the computer key, reads the operation sequence preset by the computer key, and sends operation prompt information to the secondary equipment sensor. When the pressure plate, circuit breaker and handle have abnormal position change operations, the status collector will have sound and light alarm prompts, effectively avoiding the wrong insertion or withdrawal of the pressure plate during the operation process of the secondary equipment on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the system architecture diagram of the secondary equipment status non-electricity collection device of the utility model. DETAILED DESCRIPTION

[0015] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] like Figure 1As shown, a secondary device status non-electrical quantity collection device based on an expert knowledge base includes a status collector, a computer key, a secondary device, a secondary device sensor, a monitoring controller and a host computer. The secondary device has a built-in magnetic steel induction accessory, which is connected to the secondary device sensor. The secondary device sensor converts changes in the secondary device status into switch signal outputs and transmits them to the status collector via an RS-485 cable; the status collector sends the secondary device status information to the monitoring controller via the RS-485 cable, and the monitoring controller summarizes all secondary device statuses and uploads them to the host computer; wherein the status collector is also provided with a computer key interface, which communicates with the computer key, reads the operation sequence preset by the computer key, and sends operation prompt information to the secondary device sensor.

[0017] Among them, the secondary equipment includes a pressure plate, a circuit breaker and a handle etc. arranged on the power panel cabinet.

[0018] The specific implementation method is explained using the pressure plate: the pressure plate sensor (Hall sensor) configures the pressure plate structure according to the position change of the pressure plate when it is inserted and retracted, that is, a magnetic steel accessory is set at the rotatable part of the pressure plate body. As the position of the pressure plate body changes, the induction accessory excites the sensor module through magnetic induction. The sensor module converts the change of the equipment status into a switch signal output, which is transmitted to the status collector through RS-485.

[0019] It should be noted that the status collector is a DCZL13-GW2DXC model collector, which centrally collects the status of the pressure plate, circuit breaker, and handle on a panel cabinet. It communicates with the pressure plate sensor via a single bus and transmits status information to the monitoring controller via RS-485 communication. The monitoring controller summarizes all status information and forwards it to the secondary equipment error prevention system based on the expert knowledge base in the host computer. The secondary equipment error prevention system based on the expert knowledge base is described in the form of a knowledge base. Its essence is a knowledge base system based on logical rules. It associates equipment operations, interval types, interval status, secondary equipment, and the constraints between them to form a database. The status collector contains a computer key interface that can communicate with the computer key, read the computer key's preset operation sequence, and send operation prompt information to the equipment sensor.

[0020] It should be noted that the pre-set operation sequence for the computer key refers to the correct, pre-set sequence for the pressure platen operation, which can be transferred to the computer key after a successful secondary equipment operation simulation. The on-site operator inserts the computer key into the key port of the corresponding pressure platen collector. According to the operation sequence, the corresponding pressure platen status sensors illuminate in sequence, prompting the operator to proceed. If the operation is not performed according to the prompts, the secondary equipment anti-error system based on the expert knowledge base and the pressure platen status collector will simultaneously issue an audible and visual alarm, effectively preventing the incorrect insertion or removal of pressure plates.

[0021] The utility model is a device for collecting non-electrical quantity of secondary equipment status based on expert knowledge base. It collects non-electrical quantity signals of secondary equipment status in real time based on Hall induction principle. It not only solves the problem that the status of secondary equipment cannot be collected and monitored in real time, but also when the pressure plate, circuit breaker and handle have abnormal position change operation, the status collector will have sound and light alarm prompts, which effectively avoids the wrong insertion or withdrawal of the pressure plate during the operation of secondary equipment on site.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for collecting non-electrical quantity of secondary equipment status based on an expert knowledge base, characterized in that: include: A status collector, a computer key, a secondary device, a secondary device sensor, a monitoring controller, and a host computer. The secondary device has a built-in magnetic induction accessory, which is connected to the secondary device sensor. The secondary device sensor converts changes in the secondary device state into switch signal outputs, which are transmitted to the status collector via an RS-485 cable. The status collector transmits the secondary device status information to the monitoring controller via an RS-485 cable. The monitoring controller summarizes the status of all secondary devices and uploads it to the host computer. The status collector is also provided with a computer key interface, which communicates with the computer key, reads the operation sequence preset by the computer key, and sends operation prompt information to the secondary device sensor.

2. The device for collecting non-electrical quantity of secondary equipment status based on expert knowledge base according to claim 1 is characterized in that: The secondary equipment includes a pressing plate, a circuit breaker and a handle.

3. The device for collecting non-electrical quantity of secondary equipment status based on expert knowledge base according to claim 2 is characterized in that: The pressure plate, circuit breaker and handle are arranged on the power panel cabinet.

4. The device for collecting non-electrical quantity of secondary equipment status based on expert knowledge base according to claim 1 is characterized in that: The state collector is a DCZL13-GW2DXC type collector.

5. The device for collecting non-electrical quantity of secondary equipment status based on expert knowledge base according to claim 1 is characterized in that: The secondary device sensor is a Hall sensor.

6. The device for collecting non-electrical quantity of secondary equipment status based on expert knowledge base according to claim 1 is characterized in that: The host computer is provided with a secondary equipment error prevention system based on an expert knowledge base.

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