CN102565461B - Real-time on-off times recording device for relay in matrix switch module and method for realizing on-off times recording by employing same - Google Patents
Real-time on-off times recording device for relay in matrix switch module and method for realizing on-off times recording by employing same Download PDFInfo
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- CN102565461B CN102565461B CN201210049979.2A CN201210049979A CN102565461B CN 102565461 B CN102565461 B CN 102565461B CN 201210049979 A CN201210049979 A CN 201210049979A CN 102565461 B CN102565461 B CN 102565461B
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Abstract
The invention relates to a real-time on-off times recording device for a relay in a matrix switch module, and a method for realizing on-off times recording by employing same. The invention solves the problems that the probability of damage of the relay rises sharply along with the increase of service time, and the electrical life of the relay in the matrix switch is limited. The real-time on-off times recording device comprises a matrix switch switching command buffering unit, a matrix switch switching command decoding unit, an E2PROM reading-writing control unit, a counting buffering unit, a data verification unit and a serial E2PROM memory unit, wherein the matrix switch switching command buffering unit is a first-in-first-out memory. The serial number of the relay executing on-off actions is decoded by analyzing the switch switching command, and the on-off times of the relay is stored in the serial E2PROM memory unit. The device and the method are suitable for the filed of automatic testing.
Description
Technical field
The present invention relates to a kind of matrix switch module repeat circuit ON/OFF number of times real-time recording device and adopt this device to realize the method for ON/OFF number of times record, belong to field of automatic testing.
Background technology
Matrix switch is the maincenter that in Auto-Test System, signal transmits and distributes, by the different configuration of matrix switch system, can make full use of the limited resources of Auto-Test System, realize the flexible utilization of various detections and pumping signal, so the reliability of matrix switch module will directly affect the stability of Auto-Test System.
Matrix switch instrument in Auto-Test System uses relay as the matrix switch of switching signal conventionally, yet the electrical endurance of relay matrix switch is limited, is generally 10
5inferior.Along with the increase of access times, the probability of relay damaged sharply increases.Particularly in the use occasion of some high reliability, higher to the matrix switch stability requirement of relay.
Summary of the invention
The object of the invention is sharply increases and short problem in the electric serviceable life of matrix switch repeat circuit in order to solve along with increasing the probability of relay damaged service time, has designed matrix switch module repeat circuit ON/OFF number of times real-time recording device and has adopted this device to realize the method for ON/OFF number of times record.
Matrix switch module repeat circuit ON/OFF number of times real-time recording device of the present invention, it comprises matrix switch switching command buffer cell, matrix switch switching command decoding unit, E
2pROM read-write control unit, count buffer unit, data check unit and Serial E
2pROM storage unit, described matrix switch switching command buffer cell is pushup storage,
The matrix switch switching command input end of matrix switch switching command decoding unit connects the switching command output terminal of buffer cell, and the relay numbering output terminal of described matrix switch switching command decoding unit connects E
2the relay numbering input end of PROM read-write control unit, described E
2the serial data reading-writing port of PROM read-write control unit connects Serial E
2the serial data reading-writing port of PROM storage unit, described E
2the reading and writing data port of the data cached reading-writing port connection count buffer cell of PROM read-write control unit, the serial data reading-writing port of data check unit connects Serial E
2the serial data reading-writing port of PROM storage unit, the reading and writing data port of the data cached reading-writing port connection count buffer cell of described data check unit, the control signal output terminal of described data check unit connects E
2pROM read-write control unit repeat to write cache control signal input end.
The method that realizes ON/OFF number of times record based on above-mentioned matrix switch module repeat circuit ON/OFF number of times real-time recording device, it comprises the steps:
Step 1, E
2pROM read-write control unit is by Serial E
2the relay of storing in PROM storage unit ON/OFF data is read in count buffer unit, and described relay ON/OFF data comprises that relay is numbered and each numbers corresponding ON/OFF number of times;
Whether step 2, matrix switch switching command decoding unit detect matrix switch switching command buffer cell is empty, until described switching over order buffer cell is while being non-NULL, and execution step three;
The matrix switch module repeat circuit ON/OFF number of times real-time recording device that the present invention proposes and adopt this device to realize the method for ON/OFF number of times record, can in matrix switch module all the open/close action frequency of relays carry out in real time, record accurately.For user's choose reasonable signalling channel provides the foundation of science.By reading each actuating of relay number of times, avoid the more relay signal path of usage operation number of times, reduced the probability of relay damaged, make the use equalization of each relay, guaranteed the continuous stability of matrix switch module work, reached and extended the relay matrix switch object in electric serviceable life.
Accompanying drawing explanation
Fig. 1 is for adopting matrix switch module repeat circuit ON/OFF number of times real-time recording device of the present invention to realize the process flow diagram of the method for ON/OFF number of times record, Fig. 2 is the theory diagram of matrix switch module repeat circuit ON/OFF number of times real-time recording device, and wherein A represents to carry out matrix switch switching command.
Embodiment
Matrix switch module repeat circuit ON/OFF number of times real-time recording device described in embodiment one, present embodiment comprises matrix switch switching command buffer cell 1, matrix switch switching command decoding unit 2, E
2pROM read-write control unit 3, count buffer unit 4, data check unit 5 and Serial E
2 pROM storage unit 6, described matrix switch switching command buffer cell 1 is pushup storage,
The matrix switch switching command input end of matrix switch switching command decoding unit 2 connects the switching command output terminal of buffer cell 1, and the relay numbering output terminal of described matrix switch switching command decoding unit 2 connects E
2the relay numbering input end of PROM read-write control unit 3, described E
2the serial data reading-writing port of PROM read-write control unit 3 connects Serial E
2the serial data reading-writing port of PROM storage unit 6, described E
2the reading and writing data port of the data cached reading-writing port connection count buffer cell 4 of PROM read-write control unit 3, the serial data reading-writing port of data check unit 5 connects Serial E
2the serial data reading-writing port of PROM storage unit 6, the reading and writing data port of the data cached reading-writing port connection count buffer cell 4 of described data check unit 5, the control signal output terminal of described data check unit 5 connects E
2pROM read-write control unit 3 repeat to write cache control signal input end.
The difference of embodiment two, present embodiment and embodiment one is: matrix switch switching command buffer cell 1 is that the degree of depth is the storage unit that 2 * N, width are N, described matrix switch switching command buffer cell 1 is for the executed matrix switch switching command of buffer memory, wherein, N equals the line number of the relay in matrix switch module.
Described in embodiment three, present embodiment is to adopt matrix switch module repeat circuit ON/OFF number of times real-time recording device described in embodiment one to realize the method for ON/OFF number of times record, and it comprises the steps:
Step 1, E
2pROM read-write control unit 3 is by Serial E
2the relay of storing in PROM storage unit 6 ON/OFF data is read in count buffer unit 4, and described relay ON/OFF data comprises that relay is numbered and each numbers corresponding ON/OFF number of times;
E is controlled in step 6, data check unit 5
2described in PROM read-write control unit 3 repeated execution of steps four to Serial E
2 pROM storage unit 6 writes the step of ON/OFF time numerical value.
The present invention is for improving the ability of the stable continuous firing of matrix switch module, a kind of device and method of online record matrix switch module repeat circuit ON/OFF number of times is proposed, can guarantee module in the situation that of non-burst power-off to plate on the ON/OFF number of times of relay carry out record accurately and reliably.Additional function as matrix switch module, relay ON/OFF number of times record cell is only worked during in ON/OFF operating state at relay, other is constantly in suspended state, therefore it is independent of relay ON/OFF control module, can guarantee the accuracy of data recording, and there is good transplantability.E during this law is bright
2pROM needs existing E in independently components and parts support or shared instrument
2pROM, and other functional unit can be realized in the programming device of instrument.
In ON/OFF action frequency record cell inside, opening up a degree of depth is that 2 * N, width are the matrix switch switching command buffer cell that N is identical with matrix switch switching command code, matrix switch switching command for buffer memory executed, wherein, the line number that N is matrix switch.Buffer zone is a First Input First Output, and the order of head of the queue enters in command decoder unit at first.The degree of depth is that 2 * N can guarantee that every row relay of matrix switch all carries out an open and close operation, thereby avoids buffer overflow.
The state of matrix switch switching command decoding unit 2 Real-Time Monitoring matrix switch switching command buffer cells 1, when matrix switch switching command buffer cell 1 non-NULL, matrix switch switching command decoding unit 2 is read the order of matrix switch switching command buffer cell 1 head of the queue, by the parsing to matrix switch switching command, translate this and order corresponding relay numbering, and sent into E
2pROM read-write control unit 3.
E
2pROM read-write control unit 3 is directly to Serial E
2 pROM storage unit 6 is carried out read-write operation.When module powers on, E
2pROM read-write control unit 3 is from Serial E
2in PROM storage unit 6, the number of times of ON/OFF of whole relays is read in count buffer unit 4; When module is normally worked, E
2relay that PROM read-write control unit 3 translates according to command decoder unit numbering is read the number of times of ON/OFF of this relay from count buffer unit 4, then this numerical value is added and after one, writes corresponding Serial E
2in PROM storage unit 6, the numerical value of count buffer unit 4 correspondences also adds one simultaneously.
Each Serial E of upgrading
2after numerical value in PROM storage unit 6 and count buffer unit 4, data check unit reads Serial E simultaneously
2the ON/OFF number of times of the corresponding relay in PROM storage unit 6 and count buffer unit 4, if two data are identical, this relay ON/OFF number of times is stored successfully, otherwise again starts E
2pROM read-write control unit 3 carries out data write operation, until relay ON/OFF number of times is stored successfully.
Claims (3)
1. matrix switch module repeat circuit ON/OFF number of times real-time recording device, is characterized in that: it comprises matrix switch switching command buffer cell (1), matrix switch switching command decoding unit (2), E
2pROM read-write control unit (3), count buffer unit (4), data check unit (5) and Serial E
2pROM storage unit (6), described matrix switch switching command buffer cell (1) is pushup storage,
The matrix switch switching command input end of matrix switch switching command decoding unit (2) connects the switching command output terminal of buffer cell (1), and the relay numbering output terminal of described matrix switch switching command decoding unit (2) connects E
2the relay numbering input end of PROM read-write control unit (3), described E
2the serial data reading-writing port of PROM read-write control unit (3) connects Serial E
2the serial data reading-writing port of PROM storage unit (6), described E
2the reading and writing data port of the data cached reading-writing port connection count buffer cell (4) of PROM read-write control unit (3), the serial data reading-writing port of data check unit (5) connects Serial E
2the serial data reading-writing port of PROM storage unit (6), the reading and writing data port of the data cached reading-writing port connection count buffer cell (4) of described data check unit (5), the control signal output terminal of described data check unit (5) connects E
2pROM read-write control unit (3) repeat to write cache control signal input end.
2. matrix switch module repeat circuit ON/OFF number of times real-time recording device according to claim 1, it is characterized in that: matrix switch switching command buffer cell (1) is that the degree of depth is the storage unit that 2 * N, width are N, described matrix switch switching command buffer cell (1) is for the executed matrix switch switching command of buffer memory, wherein, N equals the line number of the relay in matrix switch module.
3. based on matrix switch module repeat circuit ON/OFF number of times real-time recording device claimed in claim 1, realize the method for ON/OFF number of times record, it is characterized in that: it comprises the steps:
Step 1, E
2pROM read-write control unit (3) is by Serial E
2the relay of storing in PROM storage unit (6) ON/OFF data is read in count buffer unit (4), and described relay ON/OFF data comprises that relay is numbered and each numbers corresponding ON/OFF number of times;
Whether step 2, matrix switch switching command decoding unit (2) detect matrix switch switching command buffer cell (1) is empty, until described switching over order buffer cell (1) while be non-NULL, performs step three;
Step 3, matrix switch switching command decoding unit (2) read an order in matrix switch switching command buffer cell (1), and this order is resolved to acquisition, and this orders corresponding relay numbering, then this relay numbering is write to E
2pROM read-write control unit (3);
Step 4, E
2pROM read-write control unit (3) reads the number of times of ON/OFF of relay corresponding in count buffer unit (4) according to described relay numbering, and by this ON/OFF time numerical value add one, then time numerical value of ON/OFF adding after one is write to Serial E
2the former data of the middle replacement of PROM storage unit (6) also write the former data of replacement in count buffer unit (4) by time numerical value of ON/OFF adding after one simultaneously;
Step 5, data check unit (5) write Serial E in read step four simultaneously
2oN/OFF number of times in PROM storage unit (6) and count buffer unit (4), and judge that whether described two ON/OFF number of times are identical, judgment result is that to be, data storage is correct, returns to execution step two, and the determination result is NO, data storage errors, performs step six;
E is controlled in step 6, data check unit (5)
2described in PROM read-write control unit (3) repeated execution of steps four to Serial E
2pROM storage unit (6) writes the step of ON/OFF time numerical value.
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CN104569797A (en) * | 2013-10-22 | 2015-04-29 | 珠海格力电器股份有限公司 | Service life test system of contact-type switch and service life test method |
CN104865958A (en) * | 2015-05-04 | 2015-08-26 | 株洲南车时代电气股份有限公司 | Matrix switch device, system and method |
CN107632256A (en) * | 2017-08-21 | 2018-01-26 | 上海斐讯数据通信技术有限公司 | A kind of relay stability test method, apparatus and system |
CN107656197A (en) * | 2017-08-23 | 2018-02-02 | 中国电子科技集团公司第四十研究所 | The implementation method of switching times is switched in a kind of programming count switching network |
CN110113137B (en) * | 2019-05-17 | 2021-07-30 | 石家庄科林电气股份有限公司 | Method for eliminating data transmission interference |
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