CN205017459U - Can long -range outage and signal gathering who restarts and transmission equipment - Google Patents
Can long -range outage and signal gathering who restarts and transmission equipment Download PDFInfo
- Publication number
- CN205017459U CN205017459U CN201520695246.5U CN201520695246U CN205017459U CN 205017459 U CN205017459 U CN 205017459U CN 201520695246 U CN201520695246 U CN 201520695246U CN 205017459 U CN205017459 U CN 205017459U
- Authority
- CN
- China
- Prior art keywords
- electric capacity
- connects
- resistance
- diode
- power
- 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
Abstract
The utility model provides a can long -range outage and signal gathering who restarts and transmission equipment, include: power module, collecting control module, display element, display element power input end is connected to the power module power output end, camera monitoring remote equipment, camera data output end passes through remote network and connects display element, display element connects collecting control module information input end, collecting control module power input end is connected to power module control power output end, collecting control module command control end link order terminal. Remote control with restart, a large amount of manpower resources are saved to the possible home -confined effect that can reach control. The intelligent remote monitoring to controlgear be can realize, the time and the resource of trouble are sparingly investigated. Remote monitoring and control in the video monitoring field to signal battery.
Description
Technical field
The utility model relates to electronic circuit control field, particularly relate to a kind of can long-range power-off and the signal gathering of restarting and transmission equipment.
Background technology
Along with the development of society, public security, traffic surveillance and control system are extensively arranged in community, road etc., it is be made up of headend equipment, control cabinet and Surveillance center three part mostly, its headend equipment can adopt the terminals such as analog video camera, digital high-definition web camera or video intercom, the signal that headend equipment gathers and the working state signal of himself are after control cabinet process, transfer to Surveillance center, such people just only need just can grasp the dynamic of each control point in real time by the Surveillance center of far-end.
Power-supply system and control circuit board is only established in traditional control cabinet, only has the function that simple components and parts are installed and controlled, although monitor video can be uploaded to Surveillance center, but background monitoring center cannot realize Long-distance Control to the power supply of front end, and then the function that cannot realize long-range power-off and restart.Therefore a kind of can long-range power-off being necessary with the signal gathering of restarting and transmission equipment is developed.
For monitoring the existing video camera telecommunication in field and control technology, this technical backstopping is in Internet of Things, and by video signal transmission to Surveillance center, remote monitoring center can realize the rotation control operation to video camera simultaneously.
By the monitoring software of backstage video camera, the rotating operation up and down to video camera (ball-type band The Cloud Terrace) and control can be realized, but the remote auto power-off restarting of equipment cannot be realized when video camera crashes, and controlling only for ball-shaped camera, technology application is extensive not in this respect.
The shortcoming of prior art one
1) application is comparatively single: general only for the ball-shaped camera of band The Cloud Terrace;
2) power down function cannot be realized;
3) distinct feed-back cannot be carried out.
Utility model content
The utility model is intended at least solve the technical problem existed in prior art, especially innovatively propose a kind of can long-range power-off and the signal gathering of restarting and transmission equipment.
In order to realize above-mentioned purpose of the present utility model, the utility model provides can long-range power-off and the signal gathering of restarting and transmission equipment, and it comprises: power module, acquisition control module, display unit;
Power module power output end connects display unit power input, described camera monitoring remote equipment, described camera data output end connects display unit by telecommunication network, described display unit connects acquisition control module information input terminal, described power module controls power output end and connects acquisition control module power input, described acquisition control module instruction control end link order terminal.
The beneficial effect of technique scheme is: can accomplish the home-confined effect that can reach control by the utility model, save a large amount of human resources.Can realize control appliance intelligent remote monitoring, save time and the resource of investigation fault.In field of video monitoring to the remote monitoring of power supply signal and control.
Described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described power module comprises: control chip (IC2), the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity;
Described control chip voltage input end connects the 8th electric capacity first end and the 9th electric capacity first end respectively, described 8th electric capacity second end ground connection, described 9th electric capacity second end ground connection, described control chip voltage output end connects the 6th electric capacity first end and the 7th electric capacity first end respectively, described 6th electric capacity second end ground connection, described 7th electric capacity second end ground connection.
The beneficial effect of technique scheme is: carry out power management control by this equipment of electric power source pair of module.
Described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described acquisition control module comprises: relay, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, transformer;
Power module 12V output connects the first diode cathode, described first diode cathode connects relay coil one end and the 3rd electric capacity first end respectively, described 3rd electric capacity second end ground connection, described relay coil one end also connects the 3rd diode cathode, described 3rd diode cathode connects the described relay coil other end, 220V power end connects relay normally open contact one end, described relay normally open contact other end connection transformer one end, the described transformer other end the 4th resistance in parallel, described 4th resistance first end connects the 4th electric capacity first end, described 4th resistance second end connects the 4th electric capacity second end, described 4th electric capacity first end connects the 6th diode cathode, described 4th electric capacity second end connects the 6th diode cathode, described 6th diode cathode also connects the 7th diode cathode, described 6th diode cathode connects the 7th diode cathode, described 7th diode cathode ground connection, described 4th electric capacity second end also connects the second electric capacity first end, described second electric capacity second end connects the 7th resistance first end and the 4th diode cathode respectively, described 7th resistance second end connects the 4th diode cathode, described 7th resistance second end also ground connection, described 4th diode cathode also connects the first opamp input terminal, described first operational amplifier output terminal connects the second diode cathode, described second diode cathode connects the 8th resistance first end, described 8th resistance second end connects the 5th electric capacity first end and the 6th resistance first end respectively, described 5th electric capacity second end ground connection, described 6th resistance first end also connects the second opamp input terminal, described second operational amplifier output terminal connects the 3rd resistance first end and the 5th resistance first end respectively, described 3rd resistance second end connects the second resistance first end, described second resistance second end ground connection, described 5th resistance second end connects the 5th diode cathode, described 5th diode cathode ground connection, described 5th resistance second end also link order terminal.
The beneficial effect of technique scheme is: carry out collection by acquisition control module to long-range power-off and the signal gathering of restarting and transmission equipment and control.
Described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described first operational amplifier and the second operational amplifier are MCP6002.
Described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described relay is HF115F.
Described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described 5th diode is ZMM3V3.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1) Long-distance Control and restarting, can accomplish the home-confined effect that can reach control, save a large amount of human resources.
2) comprise feedback data designed by the utility model, can realize control appliance intelligent remote monitoring, save time and the resource of investigation fault.In field of video monitoring to the remote monitoring of power supply signal and control.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is that the utility model can long-range power-off and the signal gathering of restarting and transmission equipment acquisition control module schematic diagram;
Fig. 2 is that the utility model can long-range power-off and the signal gathering of restarting and transmission equipment power module schematic diagram;
Fig. 3 is that the utility model can long-range power-off and the signal gathering of restarting and transmission equipment switch module schematic diagram.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figure 1, 2, the utility model provides can long-range power-off and the signal gathering of restarting and transmission equipment, and it comprises: power module, acquisition control module, display unit;
Power module power output end connects display unit power input, described camera monitoring remote equipment, described camera data output end connects display unit by telecommunication network, described display unit connects acquisition control module information input terminal, described power module controls power output end and connects acquisition control module power input, described acquisition control module instruction control end link order terminal.
The beneficial effect of technique scheme is: can accomplish the home-confined effect that can reach control by the utility model, save a large amount of human resources.Can realize control appliance intelligent remote monitoring, save time and the resource of investigation fault.In field of video monitoring to the remote monitoring of power supply signal and control.
As shown in Figure 2, described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described power module comprises: control chip IC2, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity;
Described control chip voltage input end connects the 8th electric capacity first end and the 9th electric capacity first end respectively, described 8th electric capacity second end ground connection, described 9th electric capacity second end ground connection, described control chip voltage output end connects the 6th electric capacity first end and the 7th electric capacity first end respectively, described 6th electric capacity second end ground connection, described 7th electric capacity second end ground connection.
The beneficial effect of technique scheme is: carry out power management control by this equipment of electric power source pair of module.
As shown in Figure 1, described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described acquisition control module comprises: relay, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, transformer;
Power module 12V output connects the first diode cathode, described first diode cathode connects relay coil one end and the 3rd electric capacity first end respectively, described 3rd electric capacity second end ground connection, described relay coil one end also connects the 3rd diode cathode, described 3rd diode cathode connects the described relay coil other end, 220V power end connects relay normally open contact one end, described relay normally open contact other end connection transformer one end, the described transformer other end the 4th resistance in parallel, described 4th resistance first end connects the 4th electric capacity first end, described 4th resistance second end connects the 4th electric capacity second end, described 4th electric capacity first end connects the 6th diode cathode, described 4th electric capacity second end connects the 6th diode cathode, described 6th diode cathode also connects the 7th diode cathode, described 6th diode cathode connects the 7th diode cathode, described 7th diode cathode ground connection, described 4th electric capacity second end also connects the second electric capacity first end, described second electric capacity second end connects the 7th resistance first end and the 4th diode cathode respectively, described 7th resistance second end connects the 4th diode cathode, described 7th resistance second end also ground connection, described 4th diode cathode also connects the first opamp input terminal, described first operational amplifier output terminal connects the second diode cathode, described second diode cathode connects the 8th resistance first end, described 8th resistance second end connects the 5th electric capacity first end and the 6th resistance first end respectively, described 5th electric capacity second end ground connection, described 6th resistance first end also connects the second opamp input terminal, described second operational amplifier output terminal connects the 3rd resistance first end and the 5th resistance first end respectively, described 3rd resistance second end connects the second resistance first end, described second resistance second end ground connection, described 5th resistance second end connects the 5th diode cathode, described 5th diode cathode ground connection, described 5th resistance second end also link order terminal.
The beneficial effect of technique scheme is: carry out collection by acquisition control module to long-range power-off and the signal gathering of restarting and transmission equipment and control.
Described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described first operational amplifier and the second operational amplifier are MCP6002.
Described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described relay is HF115F.
Described can long-range power-off and the signal gathering of restarting and transmission equipment, preferably, described 5th diode is ZMM3V3.
1) based on the control technology of relay, backend load equipment is controlled.
2) based on the network communications technology of TCP/IP, the on off operating mode of Long-distance Control relay.
Detailed embodiment:
Part I: comprise control chip IC2, input anti-reverse diode D2, D10, D23, control control circuit Q2 and around capacitance resistance ware and part capacitance resistance ware;
Part II: amplifier amplification chip U1, and around resistance, hold the comparison amplifying circuit of composition.
The VIN end of described Master control chip IC2 connect the 12V supply voltage (its network label 12VDC can be seen from figure) of input, the voltage output channel of chip IC 2 exports from 10,11,12 3 pins in parallel, can be video camera and provides supply voltage.One end that control signal receives R6 is connected.7 pin of chip U1 export the anode meeting diode D4, and the control voltage of chip IC 2 is connected with diode D11, form feedback path, can realize monitoring with presence or absence of output voltage.
As shown in Figure 3,4 pin of described chip IC 2 are voltage output control terminal.The current information that the base stage receiving control system of control section triode Q2 is exported by R6, the voltage that the high voltage of the collector electrode input of Q2 is exported by 7 pin of chip U1 and exported by 10,11,12 pin of IC2 keeps.For preventing voltage jump from causing chip IC 2 to be damaged, increasing voltage stabilizing didoe D6, and playing resistance, the capacitor element of filter action, 4 pin voltages.Calculate according to dividing potential drop, when 4 pin voltages are 3V, chip IC 2 can regulated output voltage, and wherein the preferred model of triode is MMBT5551;
6 pin of described chip IC 2 are load current output, and current conversion can be voltage signal by described resistance R46, stablize and upload in system.For preventing voltage jump, increase R29 and R36 current-limiting resistance in circuit, prevent that electric current is excessive causes wafer damage, increase voltage stabilizing didoe D19 in circuit in addition, play good voltage regulation result in circuit, when the current value detected has exceeded the scope of systemic presupposition, realize cutting off voltage by the triode Q2 in control circuit and exported.
Voltage comparator circuit in described is mainly used in starting self-locking action.Chip U1 is twin-stage type amplifier.The first order of described amplifier U1 is voltage comparator circuit.When powering on, the 3 pin input terminal voltages of U1 are that 2 pin of about 8V, U1 need charging due to electric capacity, and the rising of magnitude of voltage needs a period of time.At this moment, because 3 pin voltages are higher than 2 pin voltages, namely in-phase end is higher than end of oppisite phase, and therefore the 1 pin voltage of U1 exports as high level.Along with electric capacity C30, C33, C34 charging complete, voltage keeps raises, U12 pin voltage is more than 3 pin voltages, and the 1 pin voltage of chip U1 exports as low level, after capacitor discharge, 2 pin voltages can continue lower than 3 pin voltages, and 1 pin of U1 can export as height again, presents periodic conversion.Its object is for when short circuit current no-output, and this circuit can give periodically to export control voltage, judges that can chip normally export, if can normally export, follow-up voltage keeps giving chip IC 2 from the voltage exported.
Above-mentioned control circuit can be applicable to the current acquisition of interchange and power supply unit and controls.Described control circuit adopts normally closed relay to control, even if the controller of camera can be made to break down also can not affect normal power supply.Meanwhile, in this better embodiment, described camera control circuit utilizes high accuracy high side switches chip IC 2 to realize exporting the collection of load current, further can realize the controlling functions to camera.
Based on the circuit that controlled components is built, then realize system group network in conjunction with ICP/IP protocol, complete long-range power-off and control and restart.
The beneficial effect of technique scheme is:
1) Long-distance Control and restarting, can accomplish the home-confined effect that can reach control, save a large amount of human resources.
2) comprise feedback data designed by the utility model, can realize control appliance intelligent remote monitoring, save time and the resource of investigation fault.In field of video monitoring to the remote monitoring of power supply signal and control.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (6)
1. can long-range power-off and the signal gathering of restarting and transmission equipment, it is characterized in that, comprising: power module, acquisition control module, display unit;
Power module power output end connects display unit power input, camera monitoring remote equipment, described camera data output end connects display unit by telecommunication network, described display unit connects acquisition control module information input terminal, described power module controls power output end and connects acquisition control module power input, described acquisition control module instruction control end link order terminal.
2. according to claim 1 can long-range power-off and the signal gathering of restarting and transmission equipment, it is characterized in that, described power module comprises: control chip (IC2), the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity;
Described control chip voltage input end connects the 8th electric capacity first end and the 9th electric capacity first end respectively, described 8th electric capacity second end ground connection, described 9th electric capacity second end ground connection, described control chip voltage output end connects the 6th electric capacity first end and the 7th electric capacity first end respectively, described 6th electric capacity second end ground connection, described 7th electric capacity second end ground connection.
3. according to claim 1 can long-range power-off and the signal gathering of restarting and transmission equipment, it is characterized in that, described acquisition control module comprises: relay, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, transformer;
Power module 12V output connects the first diode cathode, described first diode cathode connects relay coil one end and the 3rd electric capacity first end respectively, described 3rd electric capacity second end ground connection, described relay coil one end also connects the 3rd diode cathode, described 3rd diode cathode connects the described relay coil other end, 220V power end connects relay normally open contact one end, described relay normally open contact other end connection transformer one end, the described transformer other end the 4th resistance in parallel, described 4th resistance first end connects the 4th electric capacity first end, described 4th resistance second end connects the 4th electric capacity second end, described 4th electric capacity first end connects the 6th diode cathode, described 4th electric capacity second end connects the 6th diode cathode, described 6th diode cathode also connects the 7th diode cathode, described 6th diode cathode connects the 7th diode cathode, described 7th diode cathode ground connection, described 4th electric capacity second end also connects the second electric capacity first end, described second electric capacity second end connects the 7th resistance first end and the 4th diode cathode respectively, described 7th resistance second end connects the 4th diode cathode, described 7th resistance second end also ground connection, described 4th diode cathode also connects the first opamp input terminal, described first operational amplifier output terminal connects the second diode cathode, described second diode cathode connects the 8th resistance first end, described 8th resistance second end connects the 5th electric capacity first end and the 6th resistance first end respectively, described 5th electric capacity second end ground connection, described 6th resistance first end also connects the second opamp input terminal, described second operational amplifier output terminal connects the 3rd resistance first end and the 5th resistance first end respectively, described 3rd resistance second end connects the second resistance first end, described second resistance second end ground connection, described 5th resistance second end connects the 5th diode cathode, described 5th diode cathode ground connection, described 5th resistance second end also link order terminal.
4. according to claim 3 can long-range power-off and the signal gathering of restarting and transmission equipment, it is characterized in that, described first operational amplifier and the second operational amplifier are MCP6002.
5. according to claim 3 can long-range power-off and the signal gathering of restarting and transmission equipment, it is characterized in that, described relay is HF115F.
6. according to claim 3 can long-range power-off and the signal gathering of restarting and transmission equipment, it is characterized in that, described 5th diode is ZMM3V3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695246.5U CN205017459U (en) | 2015-09-09 | 2015-09-09 | Can long -range outage and signal gathering who restarts and transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520695246.5U CN205017459U (en) | 2015-09-09 | 2015-09-09 | Can long -range outage and signal gathering who restarts and transmission equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205017459U true CN205017459U (en) | 2016-02-03 |
Family
ID=55216040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520695246.5U Active CN205017459U (en) | 2015-09-09 | 2015-09-09 | Can long -range outage and signal gathering who restarts and transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205017459U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847114A (en) * | 2017-04-11 | 2017-06-13 | 深圳市洲明科技股份有限公司 | Led display screen system |
| CN110958007A (en) * | 2019-12-27 | 2020-04-03 | 深圳市新国都支付技术有限公司 | Combined startup and shutdown restarting circuit |
-
2015
- 2015-09-09 CN CN201520695246.5U patent/CN205017459U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847114A (en) * | 2017-04-11 | 2017-06-13 | 深圳市洲明科技股份有限公司 | Led display screen system |
| CN110958007A (en) * | 2019-12-27 | 2020-04-03 | 深圳市新国都支付技术有限公司 | Combined startup and shutdown restarting circuit |
| CN110958007B (en) * | 2019-12-27 | 2023-10-20 | 深圳市新国都支付技术有限公司 | Combined type startup and shutdown restarting circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203537047U (en) | Uninterrupted power source system capable of conducting intelligent double-input power supply | |
| CN203056953U (en) | Driver and bus capacitor discharge circuit thereof | |
| CN103545911A (en) | Uninterrupted power system capable of conducting double-input intelligent power supply | |
| CN103607037A (en) | Switching apparatus of UPS power supply | |
| CN102368630B (en) | Seamless and circulation-less switching system for two groups of DC (direct current) power supplies | |
| CN203616592U (en) | Power supply output device | |
| CN102570525B (en) | PSoC (Programmable System on Chip)-based MPPT (Maximum Power Point Tracking) type solar charge controller | |
| CN205017459U (en) | Can long -range outage and signal gathering who restarts and transmission equipment | |
| CN101728862A (en) | Charging circuit and charging current transformation method | |
| CN205248899U (en) | OBU mode switching circuit that supplies power | |
| CN203434637U (en) | Energy storage system | |
| CN103064497B (en) | Power supply Time-delay power supply unit, network main board and network host | |
| CN103580276A (en) | Power supply circuit and power supply switching circuit of clock chip, power supply switching method and microwave oven | |
| CN110784009B (en) | Charging current adjustable UPS power charging system | |
| CN205157666U (en) | Power equipment monitoring system based on thing networking | |
| CN101771338A (en) | Switching power supply module with high reliability and low power consumption | |
| CN202978276U (en) | Secondary power-off device for prolonging working time of main load | |
| CN203278384U (en) | Power supply system of vehicle-mounted video terminal | |
| CN205039618U (en) | Join in marriage and become monitor terminal | |
| CN209642549U (en) | A kind of high-current dc power supply switching circuit | |
| CN205579440U (en) | Use building power supply system who has solar energy | |
| CN204089174U (en) | A kind of Moisture-proof switch supply unit and TV thereof | |
| CN212588140U (en) | A positive negative lithium cell parallel operation system for UPS | |
| CN204858724U (en) | Hand over automatic switching device of DC power supply | |
| CN106332373A (en) | Anti-flicker panel switch with single fire line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 401147 floor 11, Jinxing business building, No. 60 Xingguang Avenue, gaoxinyuan, Beibu new area, Yubei District, Chongqing Patentee after: Chongqing Landun Electronic Technology Co.,Ltd. Address before: 401331 floor 11, Jinxing business building, No. 60 Xingguang Avenue, gaoxinyuan, new North District, Chongqing Patentee before: CHONGQING LANDUN ELECTRONIC TECHNOLOGY SERVICE CO. |
|
| CP03 | Change of name, title or address |