CN205920160U - Detection module of communication electrical power generating system branch road state of insulation - Google Patents
Detection module of communication electrical power generating system branch road state of insulation Download PDFInfo
- Publication number
- CN205920160U CN205920160U CN201620750558.6U CN201620750558U CN205920160U CN 205920160 U CN205920160 U CN 205920160U CN 201620750558 U CN201620750558 U CN 201620750558U CN 205920160 U CN205920160 U CN 205920160U
- Authority
- CN
- China
- Prior art keywords
- chip
- main control
- branch
- cpu
- control chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Road Signs Or Road Markings (AREA)
Abstract
The utility model discloses a detection module of communication electrical power generating system branch road state of insulation, include: CPU main control chip, adopt manual dial switch realize the site selection the ADDR address location, be used for realizing data communication RS485 communication unit, be used for showing CPU running state CPU operation LED indicating units, realize busbar voltage acquisition unit that leaving of nos source follower reported an emergency and asked for help or increased vigilance the unit, be used for gathering the busbar voltage signal, be used for gathering branch road voltage signal's branch voltage acquisition unit and be used for carrying out the branch road dial switch 1 that selects to the collection passageway. The utility model provides have the precision height, the interference killing feature is strong, and equipment is small, realizes the insulating state acquisition of 40 way branch roads, passes through the bus by CPU main control chip and realizes branch road voltage acquisition with the communication of ATT7053B chip to through remote communication module and the mutual data of controlgear.
Description
Technical field
This utility model is related to a kind of product ensureing for electrical domain and in particular to a kind of power supply system for communications branch insulation
The detection module of state.
Background technology
With the economic fast development of China in recent years, the equipment using in all trades and professions such as government, electric power, bank, buildings
Get more and more it is desirable to equipment runs without interruption, most of requirement uses the power supply system for communications, at present can only be by various monitoring sides
Formula solves problems, but the monitoring device adopting on market, in actual applications it is impossible to efficient, accurate collection is connect
, it is impossible to timely alert, sense channel is less for branch insulation state and insulation resistance value.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, discloses a kind of logical
The detection module of letter power-supply system branch insulation state.Mainly it is used in the monitoring of power supply system for communications run time behaviour and event occurs
Each branch insulation state during barrier, processes branch trouble for quick, safeguards system is powered stable.Product is by every branch road leakage current
Carry out daily state monitoring, safeguard the measures such as monitoring, abnormality alarming it is ensured that power supply branch road was operated in normal range, so that
Obtain the reliable and stable operation of electric power system, the nucleus equipment especially using in fields such as similar electric power, bank, governments, with such
Product becomes particularly important.
This utility model solves its technical problem and be the technical scheme is that
A kind of detection module of power supply system for communications branch insulation state it is characterised in that: include: cpu main control chip, adopt
Realized the addr address location of addressing, be used for realizing the rs485 communication unit of data communication, being used for showing with manual toggle switch
The cpu of cpu running status runs led indicating member, realizes outputing Alarm Unit, being used for gathering busbar voltage letter of passive output
Number busbar voltage collecting unit, for gathering the branch voltage collecting unit of branch voltage signal and for entering to acquisition channel
The branch road select unit of row selection；
Wherein, manually dial-up changes cpu main control chip io pin level, and rs485 communication unit is by cpu main control chip
Ttl level signal switch to rs485 differential signal after coil Magnetic isolation, cpu runs led indicating member and passes through cpu master control
Chip io pin controls low and high level, cpu main control chip to outputing Alarm Unit control, cpu main control chip pass through bus with
Att7053b chip communication realizes busbar voltage collection；Cpu main control chip passes through bus and realizes propping up with att7053b chip communication
Road voltage acquisition；Branch road select unit is passed through io control realization 40 paths state by cpu main control chip and is switched.
Further, described addr address location adopts sw dip-4/sm toggle switch, will be dialled by 4 road pull-up resistors
Code switch positional information is through inputting cpu main control chip io pin, pull-up resistor one termination power, a termination toggle switch output.
Further, described rs485 communication unit by the ttl level signal of cpu main control chip after coil Magnetic isolation
Switch to rs485 differential signal；Described rs485 communication unit adopt adm2582e chip, adm2582e chip input vcc_5v0 and
Gnd exports the insulating power supply of 1_vcc_485 and 1_gnd_485 after isolation, transmits from the ttl level of cpu main control chip output
Number: 1_485_txd, the collection of letters number: 1_485_rxd, direction control signal: 1_485_dir, after adm2582e, export after isolating
Differential signal 1_rs485_a and 1_rs485_b.
Further, described cpu runs led indicating member and adopts straight cutting light emitting diode, the sun of straight cutting light emitting diode
Pole connects power supply through resistance, and negative electrode meets cpu main control chip io pin pb6.
Further, described Alarm Unit of outputing includes three groups of identical warning circuits, and one of which warning circuit includes
1 and 2 pins of relay rl1, relay rl1 are input coil, and 3 pins are common port, and 4 pins are normally closed node, and 5 pins are
Normally closed node, mcu_alarm1 controls pin pb11 for cpu, connects audion q3 base stage, audion q3 colelctor electrode through resistance r76
Contact relay rl1 input coil respectively, and connect input power through diode d12.
Further, described busbar voltage collecting unit cpu main control chip passes through bus with att7053b chip communication in fact
Existing branch voltage collection；Described busbar voltage collecting unit passes through electric resistance partial pressure, sorts out+hkm-to-att and-hm/km-to-
Att voltage signal, by resistance r25 and resistance r32 and filter capacitor c34, c35, c40, c41, obtains+hkm-to-att_
N ,+hkm-to-att_p ,-hm/km-to-att_n and-hm/km-to-att_p signal, this bus voltage signal inputs
Att7053b chip, lc-to-att_p and lc-to-att_n gathers for branch voltage, and chip is powered using+5v power supply, 6m brilliant
Shake, att7053b chip and cpu main control chip adopt spi bus communication, communication pin include signal input mcu_att_din,
Signal output mcu_att_dout, signal clock mcu_att_clk and signal enable mcu_att_cs1, and corresponding pin is respectively
Pc3, pc2, pc1 and pa14.
Further, described branch voltage collecting unit passes through bus and att7053b chip communication by cpu main control chip
Realize branch voltage collection；Described branch voltage collecting unit adopts the optic coupling element q1, crl_jy01-crl_ of model 284eh
Jy40 is branch road selection signal, when wherein any one road conducting, will obtain this road voltage lc_in, lc_in through r99 and
R89 is organized into lc-to-att_p and lc-to-att_n and is input in att7053b chip, att7053b chip and cpu master control core
Piece adopts spi bus communication, by voltage regulation resistance r90, r91 and r34 and filter capacitor c81 and c82 output.
Further, described branch road select unit passes through the switching of io control realization 40 paths state by cpu main control chip；
Described branch road select unit includes the selection of 74hc138 decoder, 74hc138 decoder input and output control and channel selecting and controls
Three parts；Cpu main control chip 8 tunnel enables io and 3 tunnels control io to control 5 road 74hc138 decoders, each 74hc138 decoder
Exportable 8 line state amounts are simultaneously sent to att7053b chip.
This utility model compared with prior art has the advantage that
This utility model provides a kind of detection module of the power supply system for communications branch insulation state of advanced technology, possesses
Precisely collection communicating system branch road leakage current, precisely gathers busbar voltage, and real-time high-efficiency calculates insulation resistance it is adaptable to each row is each
Industry and various types of power supply system for communications.It effectively avoids can not efficiently, accurately gathering of existing market and is connect
Road state of insulation and insulation resistance value, it is impossible to timely alert, the problems such as sense channel is less, have a high precision, strong antijamming capability,
Equipment volume is little, has good application prospect in terms of the power supply system for communications.
This utility model is capable of telecommunication, can be communicated by modbus Standards Code, real time inspection is connect
Enter each branch insulation state, the information such as bus state and alarm, this equipment will greatly facilitate management, the convenience of power-supply system
Process dependent failure in time, improve equipment power supply reliability.
This utility model is capable of 40 road branch insulation state acquisitions, by cpu main control chip pass through bus with
Att7053b chip communication realizes branch voltage collection, and by remote communication module and control device interaction data.
Brief description
The detection module structured flowchart of the power supply system for communications branch insulation state that Fig. 1 provides for this utility model；
The described rs485 communication unit process circuit figure that Fig. 2 provides for this utility model；
Fig. 3 outputs Alarm Unit process circuit figure described in this utility model offer；
The described busbar voltage collecting unit electric operation control circuit figure that Fig. 4 a provides for this utility model；
The voltage collection circuit figure of the described busbar voltage collecting unit that Fig. 4 b provides for this utility model；
The branch road selection circuit figure of the described branch voltage collecting unit that Fig. 5 a provides for this utility model；
The voltage collection circuit figure of the described branch voltage collecting unit that Fig. 5 b provides for this utility model；
74hc138 decoder in the described branch road select unit that Fig. 6 a provides for this utility model selects and input and output
Electric operation control circuit figure；
Channel selection control circuit figure in the described branch road select unit that Fig. 6 b provides for this utility model.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment describes this utility model specific embodiment:
A kind of detection module structural frames of the power supply system for communications branch insulation state providing for this utility model referring to Fig. 1
Figure.
As shown in figure 1, a kind of detection module of power supply system for communications branch insulation state, comprising: cpu main control chip, adopt
Realized the addr address location of addressing, be used for realizing the rs485 communication unit of data communication, being used for showing with manual toggle switch
The cpu of cpu running status runs led indicating member, realizes outputing Alarm Unit, being used for gathering busbar voltage letter of passive output
Number busbar voltage collecting unit, for gathering the branch voltage collecting unit of branch voltage signal and for entering to acquisition channel
The branch road select unit of row selection；
Wherein, manually dial-up changes cpu main control chip io pin level, and rs485 communication unit is by cpu main control chip
Ttl level signal switch to rs485 differential signal after coil Magnetic isolation, cpu runs led indicating member and passes through cpu master control
Chip io pin controls low and high level, cpu main control chip to outputing Alarm Unit control, cpu main control chip pass through bus with
Att7053b chip communication realizes busbar voltage collection；Cpu main control chip passes through bus and realizes propping up with att7053b chip communication
Road voltage acquisition；Branch road select unit is passed through io control realization 40 paths state by cpu main control chip and is switched.
In this utility model embodiment, it is female that cpu main control chip reads chip att7053b Real-time Collection by communication bus
Line voltage and branch voltage, read chip att7028c Real-time Collection bus and branch road ac voltage over the ground, by enabling
74hc138 decoder, and input a1, a2, a3 signal is controlled, select to need the passage of collection, then by att7053b core
Piece direct collection voltages live signal.Each paths Real-time Collection voltage signal, carries out real-time operation by main control chip, uses
Modbus stipulations are communicated with other control devices, realize that branch insulation resistance shows, busbar voltage shows, the work(such as alarm output
Energy.Setting download online programming unit inside cpu main control chip, by clk, rst, dat, vcc and gnd can achieve download online
Programming program, and can online step trakcing debugging routine function, convenient production and test.
In this utility model embodiment, manually dial-up directly changes cpu main control chip io pin level, cpu master control
Chip identifies 4 bit address line states, by 4 road 4.7k pull-up resistors by toggle switch positional information through inputting cpu main control chip
Io pin, respectively pa11, pb12, pb13 and pb14, pull-up resistor one terminates+5v power supply, and a termination toggle switch exports,
Cpu main control chip, according to pin level height, judges combination 4 hexadecimal address codes of this equipment, address by internal processes
Scope 00-0f, realizing battery inspection device address can manual dial-up function.
The described rs485 communication unit process circuit figure that Fig. 2 provides for this utility model.
Referring to Fig. 2, the ttl level signal of cpu main control chip is switched to after coil Magnetic isolation by rs485 communication unit
Rs485 differential signal, then by 4pin, the terminal of 5.08mm spacing is drawn；Rs485 communication unit adopts adm2582e chip us1,
Adm2582e chip inputs the insulating power supply that vcc_5v0 and gnd exports 1_vcc_485 and 1_gnd_485 after isolation, from cpu
The ttl level of main control chip output signals: 1_485_txd, the collection of letters number: 1_485_rxd, direction control signal: 1_485_dir
After adm2582e, differential signal 1_rs485_a and 1_rs485_b after output isolation；C99, c100, c107 and c108 are defeated
Enter to hold decoupling capacitance, c101 and c104 to be outfan decoupling capacitance, r75 is build-out resistor, protection signal stability.
In this utility model embodiment, described cpu runs led indicating member and passes through cpu main control chip io pin control height
Low level, realizes to the control of straight cutting light emitting diode light on and off it was demonstrated that cpu main control chip running status.Cpu runs led and refers to
Show that unit adopts straight cutting light emitting diode, the anode of straight cutting light emitting diode connects+5v power supply through 4.7k resistance, and negative electrode meets cpu master
Control chip io pin pb6, cpu main control chip controls io pin low and high level to control light emitting diode light on and off, and high level is bright, low
Level is to go out.
Fig. 3 outputs Alarm Unit process circuit figure described in this utility model offer.
Referring to Fig. 3, output Alarm Unit and controlled by cpu main control chip, realize quickly opening and closing and output node, can be used as equipment
Alarm, signal control to be used.Output Alarm Unit and include three groups of warning circuits, warning circuit includes hf-32f taking alarm1 as a example
12v relay rl1,1 and 2 pin is input coil, and 3 pins are common port, and 4 pins are normally closed node, and 5 pins are normally closed section
Point, mcu_alarm1 controls pin pb11 for cpu, connects audion q3 base stage so that control signal is more steady through resistance r76
Fixed, audion q3 colelctor electrode contact relay rl1 input coil respectively, and meet input power 12v through diode d12.Alarm2 and
Alarm3 is in the same manner.
The described busbar voltage collecting unit electric operation control circuit figure that Fig. 4 a provides for this utility model；Fig. 4 b is this utility model
The voltage collection circuit figure of the described busbar voltage collecting unit providing.
Referring to Fig. 4 a and Fig. 4 b, busbar voltage collecting unit cpu main control chip passes through bus and att7053b chip communication
Realize branch voltage collection；Busbar voltage collecting unit passes through electric resistance partial pressure, sorts out+hkm-to-att and-hm/km-to-
Att voltage signal, is ensureing to be input to att7053b signal stabilization by r25 and r32 resistance, c34, c35, c40, c41 are filter
Ripple electric capacity, obtains+hkm-to-att_n ,+hkm-to-att_p ,-hm/km-to-att_n and-hm/km-to-att_p signal,
This bus voltage signal inputs att7053b chip, lc-to-att_p and lc-to-att_n gathers for branch voltage, and chip is adopted
Powered with+5v power supply, 6m crystal oscillator, chip obtains bus voltage value with main control chip using spi bus communication, and communication pin is
Mcu_att_din(signal input), mcu_att_dout(signal output), mcu_att_clk(signal clock) and mcu_att_
Cs1(signal enables), corresponding pin is respectively pc3, pc2, pc1 and pa14, r29 and r37 is voltage regulation resistance it is ensured that signal and confession
Electricity is stable, c36, c37, c38 and c39 decoupling capacitor.
The branch road selection circuit figure of the described branch voltage collecting unit that Fig. 5 a provides for this utility model；Fig. 5 b is this reality
Voltage collection circuit figure with the described branch voltage collecting unit of new offer.
Referring to Fig. 5 a and Fig. 5 b, branch voltage collecting unit is led to att7053b chip by bus by cpu main control chip
Reliable existing branch voltage collection；Q1 element is optocoupler, and model is 284eh, selects for branch road, and crl_jy01-crl_jy40 is
Branch road selection signal, high level turns on, and low level is ended, and when wherein any one road conducting, will obtain this road voltage lc_
In, lc_in are organized into lc-to-att_p and lc-to-att_n through r99 and r89 and are input in att7053b chip, chip with
Main control chip adopts spi bus communication, obtains this road magnitude of voltage, r90 and r91 be voltage regulation resistance it is ensured that signal input stability,
For filter capacitor it is ensured that the signal noise being input to chip is less, r34 is voltage regulation resistance to c81 and c82.
74hc138 decoder in the described branch road select unit that Fig. 6 a provides for this utility model selects and input and output
Electric operation control circuit figure.
Referring to Fig. 6 a, branch road select unit is passed through io control realization 40 paths state by cpu main control chip and is switched；Described
Branch road select unit includes the selection of 74hc138 decoder, 74hc138 decoder input and output control and channel selecting and controls three
Point；Cpu main control chip 8 tunnel enables io and 3 tunnels control io to control 5 road 74hc138 decoders, and each 74hc138 decoder can be defeated
Go out 8 line state amounts and be sent to att7053b chip, this circuit can achieve the switching of 5*8=40 paths, and passes through att7053b core
Piece gathers.
Wherein 74hc138 decoder selects is by using cpu control (respectively cpu_sel_1, cpu_sel_2, cpu_
Sel_3, cpu_sel_4, cpu_sel_5, correspond to cpu pin pc5, pc6, pd7, pc5 and pc4 respectively), in figure cpu_
As a example sel_1, other element circuits are consistent with it), control 74hc138 decoder (respectively u5, u8, u10, u11 and u12, figure
In as a example u5, other element circuits are consistent with it) decoder enable pin, enable control signal through rk35(4.7k) resistance connects
+ 5v power supply, ensures to enable signal stabilization with this, d7 light emitting diode of simultaneously connecting, and whether real time reaction current chip enables.
It is that (respectively a1, a2, a3 corresponds to cpu respectively by cpu 3 road pin that 74hc138 decoder input and output control
Pin pa2, pa3, pa4, as a example in figure u5), u5, u8, u10, u11 input identical letter with u12 position 74hc138 decoder
Number, enable and control cooperation by changing a1, a2, a3 and chip, realize single 74hc138 decoder and input 8 line states,
74hc138 decoder internal control circuit, realize 3 tunnels input 8 tunnel output functions, taking u5 as a example, output signal be crl_jy01,
Crl_jy02, crl_jy03, crl_jy04, crl_jy05, crl_jy06, crl_jy07 and, crl_jy08, c45 and c46 be go
Coupling electric capacity is it is ensured that electrical stability.
Channel selection control circuit figure in the described branch road select unit that Fig. 6 b provides for this utility model.
Referring to Fig. 6 b, channel selecting controls taking crl_jy01, crl_jy02 as a example, select in conjunction with 74hc138 decoder and
74hc138 decoder input/output control section, using 284eh light coupling relay, 284eh light coupling relay input connects respectively
Crl_jy01, crl_jy02 and+5v power supply, rh34 is 1k resistance, and its effect is exactly stable+5v input source, as crl_jy01 or
When crl_jy02 is selection state, the internal input diode of 284eh light coupling relay turns on and lights, and promotes output node to close
Close, jy01, jy02 are respectively branch road incoming end, by 5.08mm, 8p terminal is drawn.
Above in conjunction with accompanying drawing, this utility model preferred implementation is explained in detail, but this utility model is not limited to
Above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also be without departing from this utility model
Make a variety of changes on the premise of objective.
Many other can be made without departing from spirit and scope of the present utility model to change and remodeling.It should be appreciated that this reality
It is not limited to specific embodiment with new, scope of the present utility model is defined by the following claims.
Claims (8)
1. a kind of detection module of power supply system for communications branch insulation state it is characterised in that: include: cpu main control chip, employing
Manual toggle switch realizes the addr address location of addressing, for realizing the rs485 communication unit of data communication, being used for showing
The cpu of cpu running status runs led indicating member, realizes outputing Alarm Unit, being used for gathering busbar voltage letter of passive output
Number busbar voltage collecting unit, for gathering the branch voltage collecting unit of branch voltage signal and for entering to acquisition channel
The branch road select unit of row selection；
Wherein, manually dial-up changes cpu main control chip io pin level, and rs485 communication unit is by cpu main control chip
Ttl level signal switchs to rs485 differential signal after coil Magnetic isolation, and cpu runs led indicating member and passes through cpu master control core
Piece io pin controls low and high level, cpu main control chip to outputing Alarm Unit control, cpu main control chip pass through bus with
Att7053b chip communication realizes busbar voltage collection；Cpu main control chip passes through bus and realizes propping up with att7053b chip communication
Road voltage acquisition；Branch road select unit is passed through io control realization 40 paths state by cpu main control chip and is switched.
2. a kind of detection module of power supply system for communications branch insulation state according to claim 1 is it is characterised in that institute
State addr address location and adopt sw dip-4/sm toggle switch, by 4 road pull-up resistors by toggle switch positional information through input
Cpu main control chip io pin, pull-up resistor one termination power, a termination toggle switch output.
3. a kind of detection module of power supply system for communications branch insulation state according to claim 1 is it is characterised in that institute
State rs485 communication unit and the ttl level signal of cpu main control chip is switched to rs485 differential signal after coil Magnetic isolation；Institute
State rs485 communication unit and adopt adm2582e chip, adm2582e chip input vcc_5v0 and gnd exports 1_ after isolation
The insulating power supply of vcc_485 and 1_gnd_485, signals from the ttl level of cpu main control chip output: 1_485_txd, the collection of letters
Number: 1_485_rxd, direction control signal: 1_485_dir, after adm2582e, export differential signal 1_rs485_a after isolation
And 1_rs485_b.
4. a kind of detection module of power supply system for communications branch insulation state according to claim 1 is it is characterised in that institute
State cpu and run led indicating member using straight cutting light emitting diode, the anode of straight cutting light emitting diode connects power supply, negative electrode through resistance
Meet cpu main control chip io pin pb6.
5. a kind of detection module of power supply system for communications branch insulation state according to claim 1 is it is characterised in that institute
State and output Alarm Unit and include three groups of identical warning circuits, one of which warning circuit includes relay rl1, relay rl1
1 and 2 pins be input coil, 3 pins be common port, 4 pins be normally closed node, 5 pins be normally closed node, mcu_alarm1
Control pin pb11 for cpu, connect audion q3 base stage through resistance r76, the contact relay rl1 input respectively of audion q3 colelctor electrode
Coil, and connect input power through diode d12.
6. a kind of detection module of power supply system for communications branch insulation state according to claim 1 is it is characterised in that institute
State busbar voltage collecting unit cpu main control chip and branch voltage collection is realized by bus and att7053b chip communication；Described
Busbar voltage collecting unit passes through electric resistance partial pressure, sorts out+hkm-to-att and-hm/km-to-att voltage signal, is passing through
Resistance r25 and resistance r32 and filter capacitor c34, c35, c40, c41, obtain+hkm-to-att_n ,+hkm-to-att_p ,-
Hm/km-to-att_n and-hm/km-to-att_p signal, this bus voltage signal inputs att7053b chip, lc-to-att_
P and lc-to-att_n is branch voltage collection, and chip is powered using+5v power supply, 6m crystal oscillator, att7053b chip and cpu master control
Chip adopts spi bus communication, and communication pin includes signal input mcu_att_din, signal output mcu_att_dout, signal
Clock mcu_att_clk and signal enable mcu_att_cs1, and corresponding pin is respectively pc3, pc2, pc1 and pa14.
7. a kind of detection module of power supply system for communications branch insulation state according to claim 1 is it is characterised in that institute
State branch voltage collecting unit and branch voltage collection is realized by bus and att7053b chip communication by cpu main control chip；Institute
State the optic coupling element q1 that branch voltage collecting unit adopts model 284eh, crl_jy01-crl_jy40 is branch road selection signal,
When wherein any one road conducting, this road voltage lc_in will be obtained, lc_in is organized into lc-to-att_p through r99 and r89
It is input in att7053b chip with lc-to-att_n, att7053b chip adopts spi bus communication with cpu main control chip, lead to
Cross voltage regulation resistance r90, r91 and r34 and filter capacitor c81 and c82 output.
8. a kind of detection module of power supply system for communications branch insulation state according to claim 1 is it is characterised in that institute
State branch road select unit and the switching of io control realization 40 paths state is passed through by cpu main control chip；Described branch road select unit bag
Include the selection of 74hc138 decoder, 74hc138 decoder input and output control and channel selecting and control three parts；Cpu main control chip
8 tunnels enable io and 3 tunnels control io to control 5 road 74hc138 decoders, and the exportable 8 line state amounts of each 74hc138 decoder simultaneously pass
Deliver to att7053b chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620750558.6U CN205920160U (en) | 2016-07-15 | 2016-07-15 | Detection module of communication electrical power generating system branch road state of insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620750558.6U CN205920160U (en) | 2016-07-15 | 2016-07-15 | Detection module of communication electrical power generating system branch road state of insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205920160U true CN205920160U (en) | 2017-02-01 |
Family
ID=57872308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620750558.6U Active CN205920160U (en) | 2016-07-15 | 2016-07-15 | Detection module of communication electrical power generating system branch road state of insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205920160U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576930A (en) * | 2017-10-13 | 2018-01-12 | 华立科技股份有限公司 | Power supply and relay status detection circuit and method |
| CN109343414A (en) * | 2018-11-12 | 2019-02-15 | 郑州源创智控有限公司 | Actuator controller for silo ventilation |
| CN111983298A (en) * | 2020-08-24 | 2020-11-24 | 南京磐能电力科技股份有限公司 | Switching value acquisition circuit and method |
-
2016
- 2016-07-15 CN CN201620750558.6U patent/CN205920160U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576930A (en) * | 2017-10-13 | 2018-01-12 | 华立科技股份有限公司 | Power supply and relay status detection circuit and method |
| CN107576930B (en) * | 2017-10-13 | 2019-12-13 | 华立科技股份有限公司 | power supply and relay status detection circuit and method |
| CN109343414A (en) * | 2018-11-12 | 2019-02-15 | 郑州源创智控有限公司 | Actuator controller for silo ventilation |
| CN111983298A (en) * | 2020-08-24 | 2020-11-24 | 南京磐能电力科技股份有限公司 | Switching value acquisition circuit and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205920160U (en) | Detection module of communication electrical power generating system branch road state of insulation | |
| CN107192944A (en) | A kind of circuit breakers monitoring device with relay protection | |
| CN102681512B (en) | Laboratory power supply controlling and monitoring system based on ZigBee | |
| CN205829664U (en) | A kind of communication gateway apparatus processes circuit | |
| CN212845894U (en) | Real-time monitoring circuit for line condition of user electric meter | |
| CN204614123U (en) | Cable theft-prevention monitoring device | |
| CN206833211U (en) | Multi-channel switch amount detection control circuit based on Cortex M0 frameworks | |
| CN108512308A (en) | A kind of building energy consumption harvester | |
| CN205247105U (en) | RS485 communication circuit that interference killing feature is strong | |
| CN208890822U (en) | It is a kind of with the RFID electronic wiring frame system identified safely | |
| CN204392284U (en) | A kind of CAN gateway based on ARM7 | |
| CN107391032A (en) | LED curtain wall controllers based on K64 MCU | |
| CN202600458U (en) | Laboratory power supply management system | |
| CN209148766U (en) | A kind of voltage-current sensor | |
| CN203178384U (en) | Multi power supply identifying device based on BPL technology | |
| CN207264582U (en) | M bus trailing frogs | |
| CN203397394U (en) | Monitoring system for ground wire of transformer station | |
| CN205122954U (en) | Binding post module | |
| CN104133797A (en) | Environment monitoring data adapter based on PC104 buses | |
| CN208836162U (en) | Double terminal telecommunication circuits | |
| CN209748584U (en) | Transmission unit capable of multi-bus acquisition | |
| CN207037390U (en) | A kind of control detection module for building intellectualization terminal | |
| CN212258913U (en) | Differential amplifier module circuit in short-circuit fault warning device of ammeter | |
| CN210327148U (en) | Battery-powered transmission device equipment | |
| CN201075172Y (en) | Intelligent numerical control protecting equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |