CN104468241B - Base band communication bus partial short-circuit failure automatic cut-off device - Google Patents
Base band communication bus partial short-circuit failure automatic cut-off device Download PDFInfo
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- CN104468241B CN104468241B CN201410837017.2A CN201410837017A CN104468241B CN 104468241 B CN104468241 B CN 104468241B CN 201410837017 A CN201410837017 A CN 201410837017A CN 104468241 B CN104468241 B CN 104468241B
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Abstract
The invention discloses a kind of base band communication bus partial short-circuit failure automatic cut-off device, including ground remote control dispensing device, power module, control signal split circuit, master cpu, address controlling switch, control drive device, circuit device for excising.The present invention have need not piecewise line disconnection judge short circuit, can remotely each branch Zhi Duan of arbitrary cut-off communication bus, communication be flexible, the technique effect of automatic identification two-wire system polarity.It is mainly used in coal mine safety monitoring system.
Description
Technical field
The present invention relates to a kind of base band communication bus failure removal device, more particularly to one kind to have partial short-circuit failure certainly
The base band communication bus failure removal device of dynamic excision, belongs to technical field of communication equipment.
Background technology
The 70% of mine-used monitoring system failure is all as caused by bus according to the statistics made by the departments concerned, is laid in mine severe
Environment in communication cable easily extruded by mine car, scalings pound bundle, blow out slungshot bombardment and pit drip pickling,
Artificial drawing etc. is destroyed.Due to the fragility of bus structures, the full mine whole system once generation short circuit and waterflooding will paralyse,
And short trouble be institute it is faulty in be most difficult to judge and handle, piecewise line disconnection circuit can only be taken to judge at present, belonged to
In the exhaustive method of most original, the time (a first class 8 hours) of several " first classes " will be spent by often searching failure at one.Cause
This, develops a kind of device that can cut off the part that locally broken down in bus automatically, has to Safety of Coal Mine Production very heavy
The meaning wanted.
The content of the invention
It is an object of the invention to provide a kind of base band communication bus partial short-circuit failure automatic cut-off device, its power supply two
Coring circuit superposition manipulation coding, has holographic broadcast remote multi-path control function, and device is independently differentiated and rung by address
Control signal is answered, realizes that partial short-circuit is cut off automatically.
The purpose of the present invention is achieved by the following technical programs:
A kind of base band communication bus partial short-circuit failure automatic cut-off device, including ground remote control dispensing device 1, electricity
Source module 2, control signal split circuit 3, master cpu 4, address controlling switch 5, control drive device 6, circuit excision dress
7 are put, wherein ground remote control dispensing device 1 is connected with power module 2, ground remote control dispensing device 1 and control signal
Split circuit 3 is connected, and power module 2 is connected with control drive device 6, and power module 2 is connected with master cpu 4, control signal point
It is connected from circuit 3 with master cpu 4, address controlling switch 5 is connected with master cpu 4, master cpu 4 and control drive device 6
Connection, control drive device 6 are connected with circuit device for excising 7.
The purpose of the present invention can also further be realized by following technical measures:
Aforementioned baseband communication bus partial short-circuit failure automatic cut-off device, wherein control signal split circuit 3 is by resistance
R1, resistance R3, diode D5, resistance R30, half adder CD4070 compositions, the output end of ground remote control dispensing device 1 and resistance
R1 one end is connected, and remote control dispensing device 1 another output end in ground is connected with diode D5 negative pole, diode D5 positive pole
It is connected with resistance R30 one end, the resistance R1 other ends are connected in parallel in resistance R3 one end with the resistance R30 other ends, and resistance R3 is another
End be connected with half adder CD4070 1 pin, half adder CD4070 2 pin are connected with VCC power supplys, half adder CD4070 3 pin and
Half adder CD4070 9 pin connection, half adder CD4070 8 pin are connected with an I/O of master cpu 4, half adder CD4070's
10 pin are connected with an I/O mouth of master cpu 4.
Aforementioned baseband communication bus partial short-circuit failure automatic cut-off device, wherein control drive device 6 by resistance R12,
Resistance R13, resistance R5, resistance R6, triode G1, triode G2, diode D6, diode D7, storage capacitor C03 compositions, electricity
The positive pole of source module 2 is connected with storage capacitor C03 one end, diode D6 one end and diode D7 one end respectively, and storage capacitor C03 is another
One end is connected to ground, and one of master cpu 4 control output I/O mouth is connected with resistance R13 one end, the resistance R13 other ends respectively with
Triode G1 base stage is connected with resistance R6 one end, and the resistance R6 other ends are connected to ground, triode G1 colelctor electrodes respectively with two poles
The pipe D6 other ends and circuit device for excising 7 are connected, and triode G1 emitter stages are connected to ground, a control output I/ of master cpu 4
O mouths are connected with resistance R12 one end, and the resistance R12 other ends are connected with triode G2 base stage and resistance R5 one end respectively, resistance R5
The other end is connected to ground, and triode G2 colelctor electrodes are connected with the diode D7 other ends and circuit device for excising 7 respectively, triode G2
Emitter stage is connected to ground.
Aforementioned baseband communication bus partial short-circuit failure automatic cut-off device, wherein address controlling switch 5 is dial-up
Switch.
Aforementioned baseband communication bus partial short-circuit failure automatic cut-off device, wherein circuit device for excising 7 be magnetic keep after
Electrical equipment.
Compared with prior art, the beneficial effects of the invention are as follows:
The present invention coordinates control drive circuit and circuit device for excising using master cpu, and whole device, which is taken orders from, to be come from
Ground controls the technical scheme of the on/off control order of dispensing device, and obtaining need not the judgement short circuit event of piecewise line disconnection
Barrier, can the long-range each branch Zhi Duan of arbitrary cut-off communication bus technique effect.The present invention is also folded using two coring circuits of power supply
Add manipulation coding, broadcast communication mode, address controlling switch combined use, each device by address controlling switch come
The address of device is set and subsidiary address code can be encoded with manipulation by the address of itself and is relatively judged whether
Accordingly, multiple devices, the technique effect of the autonomous response control of device energy be can control so as to obtain a bus.The control of the present invention
Demultiplexing circuit coordinate master cpu, can avoid two-wire system input polarity connection error the problem of, also with automatic identification two
The technique effect of line polarity.When the present invention uses magnetic latching relay, magnetic latching relay is waken up when needing switching circuit,
Switching state is only usually maintained by magnetic latching relay itself magnetic attraction, has and greatly reduces device power consumption, save the energy
Technique effect.
Brief description of the drawings
Fig. 1 is the circuit structure diagram of the present invention;
Fig. 2 is the circuit diagram of control signal split circuit of the present invention;
Fig. 3 is the circuit diagram of present invention control drive device.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of heretofore described base band communication bus partial short-circuit failure automatic cut-off device, including
Ground remote control dispensing device 1, power module 2, control signal split circuit 3, master cpu 4, address controlling switch 5,
Drive device 6, circuit device for excising 7 are controlled, wherein ground remote control dispensing device 1 is connected with power module 2, and ground is long-range
Control dispensing device 1 be connected with control signal split circuit 3, power module 2 with control drive device 6 be connected, power module 2 and
Master cpu 4 is connected, and control signal split circuit 3 is connected with master cpu 4, and address controlling switch 5 is connected with master cpu 4,
Master cpu 4 is connected with control drive device 6, and control drive device 6 is connected with circuit device for excising 7.
As shown in Fig. 2 control signal split circuit 3 described in the invention of this hair by resistance R1, resistance R3, diode D5,
Resistance R30, half adder CD4070 are formed, and the output end of ground remote control dispensing device 1 is connected with resistance R1 one end, and ground is long-range
Control 1 another output end of dispensing device is connected with diode D5 negative pole, and diode D5 positive pole is connected with resistance R30 one end,
The resistance R1 other ends are connected in parallel in resistance R3 one end, the resistance R3 other ends and the 1 of half adder CD4070 with the resistance R30 other ends
Pin is connected, and half adder CD4070 2 pin are connected with VCC power supplys, and half adder CD4070 3 pin connect with half adder CD4070 9 pin
Connect, half adder CD4070 8 pin are connected with an I/O of master cpu 4, half adder CD4070 10 pin and the one of master cpu 4
Individual I/O mouths connection.
As shown in figure 3, heretofore described control drive device 6 by resistance R12, resistance R13, resistance R5, resistance R6,
Triode G1, triode G2, diode D6, diode D7, storage capacitor C03 compositions, the positive pole of power module 2 are electric with energy storage respectively
Appearance C03 one end, diode D6 one end are connected with diode D7 one end, and the storage capacitor C03 other ends are connected to ground, master cpu 4
One control output I/O mouth is connected with resistance R13 one end, the resistance R13 other ends base stage and resistance R6 with triode G1 respectively
One end is connected, and the resistance R6 other ends are connected to ground, and triode G1 colelctor electrodes fill with the diode D6 other ends and circuit excision respectively
7 connections are put, triode G1 emitter stages are connected to ground, and a control output I/O mouth of master cpu 4 is connected with resistance R12 one end,
The resistance R12 other ends are connected with triode G2 base stage and resistance R5 one end respectively, and the resistance R5 other ends are connected to ground, triode
G2 colelctor electrodes are connected with the diode D7 other ends and circuit device for excising 7 respectively, and triode G2 emitter stages are connected to ground.It is therein
Address controlling switch 5 is toggle switch, and circuit device for excising 7 is magnetic latching relay.
Before erecting device, due to that can access multiple devices in a bus, control signal is sent with the forms of broadcasting, often
Individual device can all receive control signal, can adjust each voice acousto-optic case apparatus by address controlling switch according to demand
Address, address can be with identical, can also be different, and identical address represents that several devices receive control signal
When can act simultaneously.
For device no matter in normal work or when sending control signal, ground remote control dispensing device 1 can the company of offer
Continuous continuous power supply supply.
When needing to change the switching state of circuit device for excising, ground remote control dispensing device 1 is according to control instruction
The polarity skip signal of a succession of positive and negative 18V voltages is exported, the skip signal is sent in the form of broadcasting.
Skip signal enters control signal split circuit, is therefrom stripped out control signal by control signal split circuit
Being changed into 1 or 0 coding formed, (positive 18V represents 1, and 0) negative 18V is represented, then pass to master cpu, due to the two-wire system mode of connection
The possibility of 50% wiring error occurs, false wiring can cause control signal to monitor control by " phasing back ", master cpu
The beginning identifier for each field signal that demultiplexing circuit transmission processed comes, when the beginning identifier for finding signal starts with regulation
During identifier opposite in phase, then control signal split circuit is controlled to be always maintained at the phase of inverted receiver skip signal until receiving
Correctly stop reverse controls after beginning identifier, ensures that master cpu receives the letter that the transmission of control signal split circuit comes with this
Number correctness.
Due to that can access multiple devices in a bus, control signal is sent with the forms of broadcasting, and each device can be received
To control signal, when master cpu receives control signal, address code that can be in control signal judges whether and address
Address set by controlling switch is identical, and if the same control control drive device is done with this driver circuit device for excising
Corresponding switching action.
The present invention uses magnetic latching relay, wakes up magnetic latching relay when needing switching circuit, usually only passes through magnetic
Guard relay itself magnetic attraction maintains switching state, has and greatly reduces device power consumption, saves the technique effect of the energy.
In addition to the implementation, the present invention can also have other embodiment, all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (1)
1. a kind of base band communication bus partial short-circuit failure automatic cut-off device, including ground remote control dispensing device, power supply
Module, control signal split circuit, master cpu, address controlling switch, control drive device, circuit device for excising, it is described
Ground remote control dispensing device is connected with power module, and ground remote control dispensing device connects with control signal split circuit
Connect, power module is connected with control drive device, and power module is connected with master cpu, control signal split circuit and master cpu
Connection, address controlling switch are connected with master cpu, and master cpu is connected with control drive device, controls drive device and line
Road device for excising connection;
Characterized in that, the control signal split circuit is by resistance R1, resistance R3, diode D5, resistance R30, half adder
CD4070 is formed, and ground remote control dispensing device output end is connected with resistance R1 one end, and ground remote control dispensing device is another
One output end is connected with diode D5 negative pole, and diode D5 positive pole is connected with resistance R30 one end, the resistance R1 other ends and electricity
The resistance R30 other ends are connected in parallel in resistance R3 one end, and the resistance R3 other ends are connected with half adder CD4070 1 pin, half adder
CD4070 2 pin are connected with VCC power supplys, and half adder CD4070 3 pin are connected with half adder CD4070 9 pin, half adder
CD4070 8 pin and an I/O mouth of master cpu connect, half adder CD4070 10 pin and another I/O mouth of master cpu
Connection;The control drive device is by resistance R12, resistance R13, resistance R5, resistance R6, triode G1, triode G2, diode
D6, diode D7, storage capacitor C03 composition, power module positive pole respectively with storage capacitor C03 one end, diode D6 one end and
Diode D7 one end is connected, and the storage capacitor C03 other ends are connected to ground, the control output I/O mouth and resistance of master cpu
R13 one end connects, and the resistance R13 other ends be connecteds with triode G1 base stage and resistance R6 one end respectively, the resistance R6 other ends and
Ground connects, and triode G1 colelctor electrodes be connecteds with the diode D6 other ends and circuit device for excising respectively, triode G1 emitter stages and
Ground connect, master cpu another control output I/O mouths be connected with resistance R12 one end, the resistance R12 other ends respectively with three poles
Pipe G2 base stage is connected with resistance R5 one end, and the resistance R5 other ends are connected to ground, triode G2 colelctor electrodes respectively with diode D7
The other end is connected with circuit device for excising, and triode G2 emitter stages are connected to ground.
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CN104468241B true CN104468241B (en) | 2018-02-27 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202440104U (en) * | 2012-02-14 | 2012-09-19 | 北京信息科技大学 | Band type transport safety protection system |
CN103779958A (en) * | 2012-10-26 | 2014-05-07 | 中国煤炭科工集团太原研究院 | Coal mine explosion-proof switch device for distant active power disconnection and power transmission and method |
CN204350024U (en) * | 2014-12-29 | 2015-05-20 | 镇江中煤电子有限公司 | Base band communication bus partial short-circuit fault automatic cut-off device |
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JP2009124896A (en) * | 2007-11-16 | 2009-06-04 | Oki Semiconductor Co Ltd | Electronic device, remote control device, and remote control system |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202440104U (en) * | 2012-02-14 | 2012-09-19 | 北京信息科技大学 | Band type transport safety protection system |
CN103779958A (en) * | 2012-10-26 | 2014-05-07 | 中国煤炭科工集团太原研究院 | Coal mine explosion-proof switch device for distant active power disconnection and power transmission and method |
CN204350024U (en) * | 2014-12-29 | 2015-05-20 | 镇江中煤电子有限公司 | Base band communication bus partial short-circuit fault automatic cut-off device |
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Address after: No. 101, Nanxu Avenue, Zhenjiang City, Jiangsu Province, 212000 Patentee after: ZHENJIANG ZHONGMEI ELECTRON Co.,Ltd. Address before: 212016 Zhongmei building, 161 Guyang Road, Zhenjiang City, Jiangsu Province Patentee before: ZHENJIANG ZHONGMEI ELECTRON Co.,Ltd. |
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