CN103105577A - Relay multichannel signal gating device and self-checking method thereof - Google Patents
Relay multichannel signal gating device and self-checking method thereof Download PDFInfo
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- CN103105577A CN103105577A CN2012105818671A CN201210581867A CN103105577A CN 103105577 A CN103105577 A CN 103105577A CN 2012105818671 A CN2012105818671 A CN 2012105818671A CN 201210581867 A CN201210581867 A CN 201210581867A CN 103105577 A CN103105577 A CN 103105577A
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Abstract
The invention discloses a relay multichannel signal gating device and a gating self-checking method of the relay multichannel signal gating device, and belongs to the field of multichannel test. The relay multichannel signal gating device comprises M-pole double-throw type relays, wherein the number of the relays is n, and the relays comprise a relay 1#, a relay 2# until a relay n#; and for the relay i# (1<=i<n), output ends of ports in a jth group are connected with normally closed ends of ports in a jth group of the relay (i+1)#, wherein 1<=j<=M. N groups of measured signals are respectively I1, I2 until In, wherein each group of measured signals comprises M signals, namely Ii-1, Ii-2 until Ii-M, the M signals are in sequential one-to-one connection with M signal input normally open ends of the relay i#, a self-checking signal group is connected into M normally closed ends of the relay i#, and M output ends of the relay n# output gating signals X1, X2 until XM. The invention also provides a signal gating method and the self-checking method of a relay at the same time. The relay multichannel signal gating device and the gating self-checking method of the relay multichannel signal gating device have good adaptability and expandability with regard to different channel numbers and channel route numbers.
Description
Technical field
The invention belongs to the multiple channel test field.
Background technology
Multiple channel test field in system except higher to the reliability requirement of test macro, also requires passage to have higher isolation usually.In the advantage aspect channel separation, so in the hyperchannel gating circuit of high-quality level, often use relay as gating device due to relay.
Yet, than other electron devices, relay contains physical construction, easily produce to melt down or adhesion, so serviceable life is shorter, failure rate is higher, for example M dpdt double-pole double-throw (DPDT) type relay comprises and contains plug-in strip, to this relay input control signal, control plug-in strip its normal-closed end and Chang Kaiduan are carried out gating, if plug-in strip melts down at normal-closed end with between the normal beginning, the output valve of the relay input value that both had been not equal to normal-closed end also is not equal to the input value of Chang Kaiduan, causes output abnormality; If plug-in strip sticks in normal-closed end or Chang Kaiduan, the output of relay can not change with the variation of control signal.
In the hyperchannel gating circuit of high-quality level, in the multiple channel test application that particularly army's grade and other high-quality levels require, for realizing channel separation, therefore select relay as gating device, and the higher failure rate of relay can not be guaranteed the reliability of circuit.
How under the prerequisite of the channel isolation that guarantees test macro, improving simultaneously the reliability of gating passage, is to need at present the problem that solves.
Summary of the invention
In view of this, the present invention proposes a kind of relay multi channel signals strobe unit of high reliability, guarantee that signal still can effectively be isolated in the situation that relay breaks down or lost efficacy, improved the reliability of gating circuit; And can complete easily the self-test work of whole relay gating circuit; And all have good adaptability and extensibility for different port numbers, channel bank way.
Based on above-mentioned purpose, technical scheme of the present invention is:
A kind of relay multi channel signals strobe unit comprises n M dpdt double-pole double-throw (DPDT) type relay, is respectively: relay 1#, relay 2# ... relay n#, relay comprise M group port, and every group of port is comprised of normal beginning, normal-closed end and output terminal; Relay has the control signal input end simultaneously;
For relay i#, 1≤i＜n, the output terminal of its j group port connect the normal-closed end of the j group port of relay (i+1) #, 1≤j≤M.
The measured signal of n group is respectively: I
1, I
2, I
3I
i... I
n, every group of measured signal includes M signal: I
i-1, I
i-2, I
i-3... I
i-jI
i-M, M signal be the M of a cut-in relay i# Chang Kaiduan one to one in turn;
Self-test signal group I
z-1, I
z-2I
z-MThe M of a cut-in relay 1# normal-closed end one to one in turn, the M of relay n# output terminal output gating signal X
1, X
2X
M
When P is organized measured signal I
P-1, I
P-2, I
P-3I
P-jI
P-MWhen carrying out gating, 1≤P≤n: with the control signal input end set of relay P# for often opening; The control signal input end set of the relay except relay P# is normally closed; The gating signal X of relay n# output this moment
1, X
2X
MBe P group measured signal I
P-1, I
P-2, I
P-3I
P-jI
P-M
The present invention has proposed a kind of relay multi channel signals strobe unit self checking method simultaneously, and concrete steps are:
The relay multi channel signals strobe unit of step 1, establishment a kind of high reliability as above; As the self-test signal group, input n group known signal is measured signal for the known self-test signal of this device input; Set between each signal different in twos;
Step 2, be normally closed with the control signal input end set of all relays, the gating signal X of the Strobe output output of meter relay n#
11, X
12X
1MBe divided into following three kinds of situations:
(11) if X
11, X
12X
1MEqual self-test signal group I
z-1, I
z-2I
z-M, enter step 3;
(12) if X
11, X
12X
1MWith L group measured signal I
L-1, I
L-2I
L-MEquate, 1≤L≤n judges that relay L# sticks together, and plug-in strip is adhered to Chang Kaiduan, uses the non-fault relay to replace relay L#; Repeating step two;
(13) if X
11, X
12X
1MDo not equate to be not equal to simultaneously self-test signal group, i.e. X with any one group of measured signal
11, X
12X
1MBe exceptional value, judge that a certain relay melts down, and enters step 6;
Step 3, make r=n;
Step 4, the control input end set of relay r# is often switched to open, other relay status remain unchanged, the gating signal X of the gating signal output terminal output of busy relay n#
21-r, X
22-rX
2M-r
If X
21-r, X
22-r... X
2M-rEqual r group measured signal I
r-1, I
r-2I
r-M, relay r# is normal; If X
21-r, X
22-rX
2M-rStill equal self-test signal group I
z-1, I
z-2... I
z-M, relay r# sticks together, and plug-in strip is adhered to normal-closed end, uses the non-fault relay to replace relay r#;
The control input end set of step 5, relay r# switches to normally closed, and r is from subtracting 1, repeating step four, five when r 〉=1, otherwise finish self check;
Step 6, make r=n;
Step 7, the control input end set of relay r# is often switched to open, other relay status remain unchanged, the gating signal X of the gating signal output terminal output of busy relay n#
21-r, X
22-rX
2M-r
If X
21-r, X
22-r... X
2M-rEqual r group measured signal I
r-1, I
r-2I
r-M, relay r# is normal; Otherwise X
21-r, X
22-r... X
2M-rBe exceptional value, relay r# melts down, and uses the non-fault relay to replace relay r#;
The control input end set of step 8, relay r# switches to normally closed, and r is from subtracting 1, repeating step seven, eight when r 〉=1, otherwise finish self check;
Beneficial effect:
1, multi channel signals strobe unit provided by the present invention, the structure of using n M dpdt double-pole double-throw (DPDT) type relay to connect in turn, each relay normally open end connects the output of a upper relay, normal-closed end connects one group of measured signal, the set of the control signal end by each relay is set, can the gating corresponding signal, because two kinds of input ports of relay at one time have and only have a kind of connection output port, can realize thus the isolation of signal; If wherein the fault of meltdown or adhesion occurs in certain relay, can't the isolation between each measured signal be impacted, and when above-mentioned fault occurs in relay therein, still can keep this relay relay afterwards to be in normal gating duty, this has improved the reliability of gating circuit greatly;
2, the present invention is on the basis of the multi channel signals strobe unit that provides, a kind of method of the relay self check for this device has been proposed, this self checking method exports to determine by analyzing self check the fault that relay may occur, its process is succinct, purpose is strong, can carry out quick malfunction elimination to whole gating circuit.
Description of drawings
Fig. 1 is the relay multi channel signals strobe unit overall circuit theory diagram of a kind of high reliability of the present invention;
Fig. 2 is M dpdt double-pole double-throw (DPDT) type relay theory diagram involved in the present invention.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
For solving the higher failure rate of relay and the contradiction between system's high reliability, the invention provides a kind of relay multi channel signals strobe unit of high reliability, its structured flowchart as shown in Figure 1,
For n group measured signal I, every group of measured signal includes M signal, this device comprises n M dpdt double-pole double-throw (DPDT) type relay, be respectively: relay 1#, relay 2# ... relay n#, each relay comprises M group port, its principle as shown in Figure 2, every group of port is comprised of normal beginning, normal-closed end and output terminal, wherein Chang Kaiduan and normal-closed end are input end; Simultaneously each relay all has the control signal input end, and is normally closed or often open to the set of control signal input end, can control the relevant position that is placed in of plug-in strip, makes this input end be connected with output terminal.
In this device, the connected mode of n M dpdt double-pole double-throw (DPDT) type relay is as follows: for relay i#, 1≤i＜n, the output terminal of its j group port connect the normal-closed end of the j group port of relay (i+1) #, 1≤j≤M.
This device can be organized signal to n and carry out gating, and n group signal is respectively: I
1, I
2, I
3I
i... I
n, every group of measured signal forms by M signal, and for example the measured signal of i group is: I
i-1, I
i-2, I
i-3... I
i-jI
i-M, the measured signal of i group in turn one to one the M of cut-in relay i# signal input Chang Kaiduan.
Self-test signal group I
zComprise n signal I
z-1, I
z-2... I
z-M, n signal accesses M the normal-closed end of cut-in relay 1# in turn one to one, and the M of a relay n# output terminal is as the M group gating signal X of this device
1, X
2X
MOutput terminal.
The M dpdt double-pole double-throw (DPDT) type relay that device adopts.
For this relay multi channel signals strobe unit, need to suppose gating P group measured signal I
P-1, I
P-2, I
P-3I
P-jI
P-M, 1≤P≤N, P are natural number, and the measured signal of P group are exported to the gating signal output terminal of whole relay strobe unit, can adopt following steps to carry out the gating of signal, are specially:
Step 2, be normally closed with the control signal input end set of the relay except relay P#, the normal-closed end of each group of the M of the relay except relay P# group port all is connected with output terminal.
The gating signal X of step 3, relay n# output
1, X
2X
MBe P group measured signal I
P-1, I
P-2, I
P-3I
P-M
For this relay multi channel signals strobe unit, can adopt following method to carry out self check, be specially:
Step 2, be normally closed with the control signal input end set of all relays, the normal-closed end of each group of the M of all relays group port all is connected with output terminal, the gating signal X that the Strobe output of meter relay n# is exported
11, X
12X
1MBe divided into following three kinds of situations:
(11) if X
11, X
12X
1MEqual self-test signal group I
z-1, I
z-2... I
z-M, enter step 3;
(12) if X
11, X
12X
1MWith L group measured signal I
L-1, I
L-2I
L-MEquate, relay L# sticks together, and plug-in strip is adhered to Chang Kaiduan, uses the non-fault relay to replace relay L#; Repeating step 1;
(13) if X
11, X
12X
1MDo not equate to be not equal to simultaneously self-test signal group, i.e. X with any one group of measured signal
11, X
12X
1MBe exceptional value, judge that a certain relay melts down, and enters step 6;
Step 3, make r=n;
Step 4, the control input end set of relay r# is often switched to open, other relay status remain unchanged, the gating signal X of the gating signal output terminal output of busy relay n#
21-r, X
22-rX
2M-r
If X
21-r, X
22-r... X
2M-rEqual r group measured signal I
r-1, I
r-2I
r-M, relay r# is normal; Do not consider the situation that relay r# moment melts down, if X
21-r, X
22-r... X
2M-rStill equal self-test signal group I
z-1, I
z-2... I
z-M, relay r# sticks together, and plug-in strip is adhered to normal-closed end, uses the non-fault relay to replace relay r#;
The control input end set of step 5, relay r# switches to normally closed, and r is from subtracting 1, when r repeating step four, five more than or equal to 1 time, otherwise finishes self check;
Step 6, make r=n;
Step 7, the control input end set of relay r# is often switched to open, other relay status remain unchanged, the gating signal X of the gating signal output terminal output of busy relay n#
21-r, X
22-rX
2M-r
If X
21-r, X
22-r... X
2M-rEqual r group measured signal I
r-1, I
r-2I
r-M, relay r# is normal; If X
21-r, X
22-r... X
2M-rBe not equal to r group measured signal I
r-1, I
r-2I
r-M, i.e. X
21-r, X
22-r... X
2M-rBe exceptional value, relay r# melts down, and uses the non-fault relay to replace relay r#;
The control input end set of step 8, relay r# switches to normally closed, and r is from subtracting 1, when r repeating step seven, eight more than or equal to 1 time, otherwise finishes self check;
In sum, these are only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. relay multi channel signals strobe unit, it is characterized in that, comprise n M dpdt double-pole double-throw (DPDT) type relay, be respectively: relay 1#, relay 2# ... relay n#, relay comprises M group port, and every group of port is comprised of normal beginning, normal-closed end and output terminal; Relay has the control signal input end simultaneously;
For relay i#, 1≤i＜n, the output terminal of its j group port connect the normal-closed end of the j group port of relay (i+1) #, 1≤j≤M;
The measured signal of n group is respectively: I
1, I
2, I
3I
i... I
n, every group of measured signal includes M signal: I
i-1, I
i-2, I
i-3... I
i-jI
i-M, M signal be the M of a cut-in relay i# Chang Kaiduan one to one in turn;
Self-test signal group I
z-1, I
z-2I
z-MThe M of a cut-in relay 1# normal-closed end one to one in turn, the M of relay n# output terminal output gating signal X
1, X
2X
M
When P is organized measured signal I
P-1, I
P-2, I
P-3I
P-jI
P-MWhen carrying out gating, 1≤P≤n: with the control signal input end set of relay P# for often opening; The control signal input end set of the relay except relay P# is normally closed; The gating signal X of relay n# output this moment
1, X
2X
MBe P group measured signal I
P-1, I
P-2, I
P-3I
P-jI
P-M
2. a relay multi channel signals strobe unit self checking method, is characterized in that, concrete steps are:
The relay multi channel signals strobe unit of step 1, establishment a kind of high reliability as claimed in claim 1; As the self-test signal group, input n group known signal is measured signal for the known self-test signal of described device input; Set between each signal different in twos;
Step 2, be normally closed with the control signal input end set of all relays, the gating signal X of the Strobe output output of meter relay n#
11, X
12X
1MBe divided into following three kinds of situations:
(11) if X
11, X
12X
1MEqual self-test signal group I
z-1, I
z-2I
z-M, enter step 3;
(12) if X
11, X
12X
1MWith L group measured signal I
L-1, I
L-2I
L-MEquate, 1≤L≤n judges that relay L# sticks together, and plug-in strip is adhered to Chang Kaiduan, uses the non-fault relay to replace relay L#; Repeating step two;
(13) if X
11, X
12X
1MDo not equate to be not equal to simultaneously self-test signal group, i.e. X with any one group of measured signal
11, X
12X
1MBe exceptional value, judge that a certain relay melts down, and enters step 6;
Step 3, make r=n;
Step 4, the control input end set of relay r# is often switched to open, other relay status remain unchanged, the gating signal X of the gating signal output terminal output of busy relay n#
21-r, X
22-rX
2M-r
If X
21-r, X
22-r... X
2M-rEqual r group measured signal I
r-1, I
r-2I
r-M, relay r# is normal; If X
21-r, X
22-rX
2M-rStill equal self-test signal group I
z-1, I
z-2... I
z-M, relay r# sticks together, and plug-in strip is adhered to normal-closed end, uses the non-fault relay to replace relay r#;
The control input end set of step 5, relay r# switches to normally closed, and r is from subtracting 1, repeating step four, five when r 〉=1, otherwise finish self check;
Step 6, make r=n;
Step 7, the control input end set of relay r# is often switched to open, other relay status remain unchanged, the gating signal X of the gating signal output terminal output of busy relay n#
21-r, X
22-rX
2M-r
If X
21-r, X
22-r... X
2M-rEqual r group measured signal I
r-1, I
r-2I
r-M, relay r# is normal; Otherwise X
21-r, X
22-r... X
2M-rBe exceptional value, relay r# melts down, and uses the non-fault relay to replace relay r#;
The control input end set of step 8, relay r# switches to normally closed, and r is from subtracting 1, repeating step seven, eight when r 〉=1, otherwise finish self check.
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| CN104360265A (en) * | 2014-11-06 | 2015-02-18 | 贵州天义电器有限责任公司 | Multi-switching relay tester |
| CN105137966A (en) * | 2015-10-20 | 2015-12-09 | 浙江中控技术股份有限公司 | Switch signal output channel detection method and structure |
| CN107300681A (en) * | 2017-04-28 | 2017-10-27 | 中国人民解放军91550部队 | A kind of multi-channel measurement circuit design |
| CN107315152A (en) * | 2017-04-28 | 2017-11-03 | 中国人民解放军91550部队 | A kind of many Measurement channel built-in self-test circuit designs |
| CN107887227A (en) * | 2017-12-12 | 2018-04-06 | 蚌埠依爱电子科技有限责任公司 | A kind of relay drive signal method of calibration of breeding house environmental control |
| CN109752594A (en) * | 2018-12-28 | 2019-05-14 | 北京航天测控技术有限公司 | A kind of multi-channel synchronous data acquisition method for correcting phase |
| CN111796138A (en) * | 2019-04-08 | 2020-10-20 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method |
| CN115616968A (en) * | 2022-12-16 | 2023-01-17 | 湖南高至科技有限公司 | Multi-channel activation control device |
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| CN104360265A (en) * | 2014-11-06 | 2015-02-18 | 贵州天义电器有限责任公司 | Multi-switching relay tester |
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| CN107315152A (en) * | 2017-04-28 | 2017-11-03 | 中国人民解放军91550部队 | A kind of many Measurement channel built-in self-test circuit designs |
| CN107887227A (en) * | 2017-12-12 | 2018-04-06 | 蚌埠依爱电子科技有限责任公司 | A kind of relay drive signal method of calibration of breeding house environmental control |
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| CN111796138A (en) * | 2019-04-08 | 2020-10-20 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method |
| CN111796138B (en) * | 2019-04-08 | 2021-10-08 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method |
| CN115616968A (en) * | 2022-12-16 | 2023-01-17 | 湖南高至科技有限公司 | Multi-channel activation control device |
| CN115616968B (en) * | 2022-12-16 | 2023-03-10 | 湖南高至科技有限公司 | Multi-channel activation control device |
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| CN103105577B (en) | 2015-04-01 |
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