CN110362025A - Poultry house power alarm system and its working method - Google Patents
Poultry house power alarm system and its working method Download PDFInfo
- Publication number
- CN110362025A CN110362025A CN201910781949.2A CN201910781949A CN110362025A CN 110362025 A CN110362025 A CN 110362025A CN 201910781949 A CN201910781949 A CN 201910781949A CN 110362025 A CN110362025 A CN 110362025A
- Authority
- CN
- China
- Prior art keywords
- alarm
- electronic box
- poultry house
- module
- outage detection
- 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.)
- Pending
Links
- 244000144977 poultry Species 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 49
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)
Abstract
The present invention relates to poultry house power alarm system and its working methods, and wherein poultry house power alarm system includes: power supply module, outage detection module and alarm module;Wherein the outage detection module is adapted to detect for the electric power thus supplied of power supply module;And when the outage detection module detects that power supply module powers off, triggering alarm module issues alarm;Poultry house power alarm system of the invention can occur powering off or when ring control device itself occurs abnormal main electronic box, secondary electronic box are any, alarm module can issue alarm, play the role of prompting, therefore the alarm of the present embodiment poultry house power alarm system is comprehensively, reliably.
Description
Technical field
The invention belongs to poultry house alarm technique fields, and in particular to poultry house power alarm system and its working method.
Background technique
It is directed to poultry house power alarm at present, the way of mainstream is to install power-off alarm (predominantly acousto-optic report additional
Alert device).The position of installation is mainly in the secondary electric cabinet electronic box of power supply (fan motor) of the rear end of henhouse
Total leakage Bao Chu.Such mode is preferable by being spaced apart the henhouse effect of control merely for blower.But for blower
For henhouse by the control of ring control device, such type of alarm there are biggish loophole, by the damage of ring control device or
To the electric cabinet damage that ring control device is powered, will lead to henhouse rear end blower can not start.
Therefore, it is desirable to a kind of henhouse series connection alarm system be researched and developed, by the main electric cabinet of henhouse front end, ring control device, secondary electric cabinet string
Connection, any one link go wrong, and can all trigger warning device.To ensure that the comprehensive, reliable of alarm.
Summary of the invention
The object of the present invention is to provide a kind of poultry house power alarm system and its working methods.
In order to solve the above-mentioned technical problems, the present invention provides a kind of poultry house power alarm systems, comprising: power supply mould
Block, outage detection module and alarm module;Wherein the outage detection module is adapted to detect for the electric power thus supplied of power supply module;And
When the outage detection module detects that power supply module powers off, triggering alarm module issues alarm.
Further, the power supply module includes: main electronic box and secondary electronic box;Main electronic box is detected in the outage detection module
And/or secondary electronic box, when power off, triggering alarm module sending is alarmed.
Further, the poultry house power alarm system further include: ring control device module;The ring control device module includes: ring
Control device and the relay in the ring control device;The ring control device between the main electronic box and the outage detection module,
And it is powered by the main electronic box;The outage detection module is adapted to detect for the open and-shut mode of relay, to detect the confession of main electronic box
Electric situation;When the outage detection module detects that relay disconnects and/or secondary electronic box powers off, triggering alarm module hair
It alarms out.
Further, the alarm module includes: the first alarm at secondary electronic box and second outside poultry house
Alarm.
Further, the outage detection module includes: the first intermediate relay and the second intermediate relay;Wherein described
The coil of one intermediate relay is connected through the relay with the main electronic box, the first alarm of contact and the secondary electronic box
It is connected;Contact of the coil of second intermediate relay through first intermediate relay is connected with the secondary electronic box;And
The contact of second intermediate relay is connected with the second alarm.
Another aspect, the present invention also provides a kind of working methods of poultry house power alarm system, comprising: disconnected by one
Electro-detection module detects the electric power thus supplied of the power supply module of poultry house;And power supply module is detected in the outage detection module
When powering off, one alarm module of triggering issues alarm.
Further, the power supply module includes: main electronic box and secondary electronic box;Main electronic box is detected in the outage detection module
And/or secondary electronic box, when power off, triggering alarm module sending is alarmed.
Further, the poultry house power alarm system further include: ring control device module;The ring control device module includes: ring
Control device and the relay in the ring control device;The ring control device between the main electronic box and the outage detection module,
And it is powered by the main electronic box;The outage detection module is adapted to detect for the open and-shut mode of relay, to detect the confession of main electronic box
Electric situation;When the outage detection module detects that relay disconnects and/or secondary electronic box powers off, triggering alarm module hair
It alarms out.
Further, the alarm module includes: the first alarm at secondary electronic box and second outside poultry house
Alarm.
Further, the outage detection module includes: the first intermediate relay and the second intermediate relay;Wherein described
The coil of one intermediate relay is connected through the relay with the main electronic box, the first alarm of contact and the secondary electronic box
It is connected;Contact of the coil of second intermediate relay through first intermediate relay is connected with the secondary electronic box;And
The contact of second intermediate relay is connected with the second alarm.
The invention has the advantages that poultry house power alarm system of the invention can be any in main electronic box, secondary electronic box
When appearance powers off or ring control device itself occurs abnormal, alarm module can issue alarm, play the role of prompting, therefore this implementation
The alarm of example poultry house power alarm system is comprehensively, reliably.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the wiring diagram of the first embodiment of poultry house power alarm system of the invention;
Fig. 2 is the wiring diagram of poultry house power alarm second of embodiment of system of the invention.
Specific embodiment
Structure of the invention is described in further detail presently in connection with attached drawing.
Embodiment 1
The present embodiment 1 provides a kind of poultry house power alarm system, comprising: power supply module, outage detection module and alarm mould
Block;Wherein the outage detection module is adapted to detect for the electric power thus supplied of power supply module;And it is detected in the outage detection module
When powering off to power supply module, triggering alarm module issues alarm.
Further, the power supply module includes: main electronic box and secondary electronic box;Main electronic box is detected in the outage detection module
And/or secondary electronic box, when power off, triggering alarm module sending is alarmed.
Specifically, the present embodiment poultry house power alarm system can main electronic box, it is secondary electronic box is any power off when, report
Alert module issues alarm, plays the role of prompting.
Further, the poultry house power alarm system further include: ring control device module;The ring control device module includes: ring
Control device and the relay in the ring control device;The ring control device between the main electronic box and the outage detection module,
And it is powered by the main electronic box;The outage detection module is adapted to detect for the open and-shut mode of relay, to detect the confession of main electronic box
Electric situation;When the outage detection module detects that relay disconnects and/or secondary electronic box powers off, triggering alarm module hair
It alarms out.
Specifically, situation is opened and closed by the relay in ring control device, for the poultry house for being equipped with ring control device to judge main electricity
When the electric power thus supplied of case, even main electronic box power off, the power supply of ring control device just be will disconnect, so that relay disconnects, this alarm mould
Block, which issues, alarms, if certainly main electronic box power supply is normal, but exception occurs in ring control device itself, also results in relay disconnection, at this time
Alarm module also issues alarm, and staff is reminded to check one by one, and therefore, the present embodiment poultry house power alarm system can be
Main electronic box, secondary electronic box be any to be occurred powering off or when ring control device itself occurs abnormal, alarm module can issue alarm, play prompting
Effect, therefore the alarm of the present embodiment poultry house power alarm system comprehensively, it is reliable.
Further, the alarm module includes: the first alarm at secondary electronic box and second outside poultry house
Alarm.
Specifically, the first alarm is such as, but not limited to using power-off telephone alarm;Second alarm is for example but unlimited
In using combined aural and visual alarm, and combined aural and visual alarm can be using with battery, can also be using without battery.
Further, the outage detection module includes: the first intermediate relay and the second intermediate relay;Wherein described
The coil of one intermediate relay is connected through the relay with the main electronic box, the first alarm of contact and the secondary electronic box
It is connected;Contact of the coil of second intermediate relay through first intermediate relay is connected with the secondary electronic box;And
The contact of second intermediate relay is connected with the second alarm.
As shown in Figure 1, the first embodiment as this poultry house power alarm system: the second alarm use without
The combined aural and visual alarm of battery, the first intermediate relay use normally opened contact, and the second intermediate relay uses normally-closed contact, i.e., originally
The mode of connection of each module is as follows in poultry house power alarm system:
The firewire L that main electronic box is drawn is connected by the relay J14 in ring control device with 14 foot of coil of the first intermediate relay, main
The zero curve N that electronic box is drawn is connected with 13 foot of coil of the first intermediate relay.
The firewire L1 that secondary electronic box is drawn is connected with 9 foot of contact of the first intermediate relay, the zero curve N1 warp that secondary electronic box is drawn
First alarm is connected with 5 foot of contact of the first intermediate relay.
The zero curve N1 that secondary electronic box is drawn also is connected with 13 foot of coil of the second intermediate relay;The line of second intermediate relay
14 feet are enclosed to access between the first alarm and 5 foot of contact of the first intermediate relay.
9 foot of contact of second intermediate relay is connected with one end of the second alarm;1 foot of contact of second intermediate relay
It is connected with the 220V firewire L2 for giving up external power or poultry house end of incoming cables power supply;The other end and 220V of second alarm give up external power
Or the zero curve N2 of poultry house end of incoming cables power supply is connected.
The alarm principle of this kind of embodiment is:
After power-off occurs for main electronic box and/or ring control device itself appearance exception causes relay to disconnect, the first intermediate relay
Coil no power keeps the current supply circuit of the first alarm disconnected so that 5 foot of contact of the first intermediate relay, 9 feet is separated
It opens, and issues alarm, while the coil no power of the second intermediate relay, so that 1 foot of contact, 9 feet of the second intermediate relay
Between be closed, so that the current supply circuit of the second alarm is powered, and issue alarm.
When secondary electronic box powers off, the current supply circuit of the first alarm is to disconnect, therefore the first alarm issues report
It is alert, while the coil no power of the second intermediate relay makes so that being closed between 1 foot of contact of the second intermediate relay, 9 feet
The current supply circuit of second alarm is powered, and issues alarm.
As shown in Fig. 2, the first embodiment as this poultry house power alarm system: the second alarm uses band to store
The combined aural and visual alarm of battery, the first intermediate relay use normally opened contact, and the second intermediate relay uses normally opened contact, i.e. this poultry
The mode of connection of each module is as follows in pouity dwelling place power alarm system:
The firewire L that main electronic box is drawn is connected by the relay J14 in ring control device with 14 foot of coil of the first intermediate relay, main
The zero curve N that electronic box is drawn is connected with 13 foot of coil of the first intermediate relay.
The firewire L1 that secondary electronic box is drawn is connected with 9 foot of contact of the first intermediate relay, the zero curve N1 warp that secondary electronic box is drawn
First alarm is connected with 5 foot of contact of the first intermediate relay.
The zero curve N1 that secondary electronic box is drawn also is connected with 13 foot of coil of the second intermediate relay;The line of second intermediate relay
14 feet are enclosed to access between the first alarm and 5 foot of contact of the first intermediate relay.
9 foot of contact of second intermediate relay is connected with one end of the second alarm;5 foot of contact of second intermediate relay
It is connected with the 220V firewire L2 for giving up external power or poultry house end of incoming cables power supply;The other end and 220V of second alarm give up external power
Or the zero curve N2 of poultry house end of incoming cables power supply is connected.
The alarm principle of this kind of embodiment is:
After power-off occurs for main electronic box and/or ring control device itself appearance exception causes relay to disconnect, the first intermediate relay
Coil no power keeps the current supply circuit of the first alarm disconnected so that 5 foot of contact of the first intermediate relay, 9 feet is separated
It opens, and issues alarm, while the coil no power of the second intermediate relay, so that 5 foot of contact, 9 feet of the second intermediate relay
It is separated, disconnect the current supply circuit of the second alarm, and issue alarm.
When secondary electronic box powers off, the current supply circuit of the first alarm is to disconnect, therefore the first alarm issues report
It is alert, while the coil no power of the second intermediate relay makes so that 5 foot of contact of the second intermediate relay, 9 feet is separated
The current supply circuit of second alarm disconnects, and issues alarm.
Embodiment 2
On the basis of embodiment 1, the present embodiment 2 provides a kind of working method of poultry house power alarm system, comprising: logical
Cross the electric power thus supplied of the power supply module of outage detection module detection poultry house;And confession is detected in the outage detection module
When electric module powers off, one alarm module of triggering issues alarm.
Further, the power supply module includes: main electronic box and secondary electronic box;Main electronic box is detected in the outage detection module
And/or secondary electronic box, when power off, triggering alarm module sending is alarmed.
Further, the poultry house power alarm system further include: ring control device module;The ring control device module includes: ring
Control device and the relay in the ring control device;The ring control device between the main electronic box and the outage detection module,
And it is powered by the main electronic box;The outage detection module is adapted to detect for the open and-shut mode of relay, to detect the confession of main electronic box
Electric situation;When the outage detection module detects that relay disconnects and/or secondary electronic box powers off, triggering alarm module hair
It alarms out.
Further, the alarm module includes: the first alarm at secondary electronic box and second outside poultry house
Alarm.
Further, the outage detection module includes: the first intermediate relay and the second intermediate relay;Wherein described
The coil of one intermediate relay is connected through the relay with the main electronic box, the first alarm of contact and the secondary electronic box
It is connected;Contact of the coil of second intermediate relay through first intermediate relay is connected with the secondary electronic box;And
The contact of second intermediate relay is connected with the second alarm.
In conclusion this poultry house power alarm system can occur powering off or ring control device main electronic box, secondary electronic box are any
When itself occurs abnormal, alarm module can issue alarm, play the role of prompting, therefore the present embodiment poultry house power alarm
The alarm of system is comprehensively, reliably.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (10)
1. a kind of poultry house power alarm system characterized by comprising
Power supply module, outage detection module and alarm module;Wherein
The outage detection module is adapted to detect for the electric power thus supplied of power supply module;And
When the outage detection module detects that power supply module powers off, triggering alarm module issues alarm.
2. poultry house power alarm system according to claim 1, which is characterized in that
The power supply module includes: main electronic box and secondary electronic box;
When the outage detection module detects main electronic box and/or secondary electronic box powers off, triggering alarm module issues alarm.
3. poultry house power alarm system according to claim 2, which is characterized in that
The poultry house power alarm system further include: ring control device module;
The ring control device module includes: ring control device and the relay in the ring control device;
The ring control device is powered between the main electronic box and the outage detection module, and by the main electronic box;
The outage detection module is adapted to detect for the open and-shut mode of relay, to detect the electric power thus supplied of main electronic box;
When the outage detection module detects that relay disconnects and/or secondary electronic box powers off, triggering alarm module is issued
Alarm.
4. poultry house power alarm system according to claim 3, which is characterized in that
The alarm module includes: the first alarm at secondary electronic box and the second alarm outside poultry house.
5. poultry house power alarm system according to claim 4, which is characterized in that
The outage detection module includes: the first intermediate relay and the second intermediate relay;Wherein
The coil of first intermediate relay is connected through the relay with the main electronic box, the first alarm of contact with
The pair electronic box is connected;
Contact of the coil of second intermediate relay through first intermediate relay is connected with the secondary electronic box;And
The contact of second intermediate relay is connected with the second alarm.
6. a kind of working method of poultry house power alarm system characterized by comprising
The electric power thus supplied of the power supply module of poultry house is detected by an outage detection module;And
When the outage detection module detects that power supply module powers off, one alarm module of triggering issues alarm.
7. the working method of poultry house power alarm system according to claim 6, which is characterized in that
The power supply module includes: main electronic box and secondary electronic box;
When the outage detection module detects main electronic box and/or secondary electronic box powers off, triggering alarm module issues alarm.
8. the working method of poultry house power alarm system according to claim 7, which is characterized in that
The poultry house power alarm system further include: ring control device module;
The ring control device module includes: ring control device and the relay in the ring control device;
The ring control device is powered between the main electronic box and the outage detection module, and by the main electronic box;
The outage detection module is adapted to detect for the open and-shut mode of relay, to detect the electric power thus supplied of main electronic box;
When the outage detection module detects that relay disconnects and/or secondary electronic box powers off, triggering alarm module is issued
Alarm.
9. the working method of poultry house power alarm system according to claim 8, which is characterized in that
The alarm module includes: the first alarm at secondary electronic box and the second alarm outside poultry house.
10. the working method of poultry house power alarm system according to claim 9, which is characterized in that
The outage detection module includes: the first intermediate relay and the second intermediate relay;Wherein
The coil of first intermediate relay is connected through the relay with the main electronic box, the first alarm of contact with
The pair electronic box is connected;
Contact of the coil of second intermediate relay through first intermediate relay is connected with the secondary electronic box;And
The contact of second intermediate relay is connected with the second alarm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910781949.2A CN110362025A (en) | 2019-08-23 | 2019-08-23 | Poultry house power alarm system and its working method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910781949.2A CN110362025A (en) | 2019-08-23 | 2019-08-23 | Poultry house power alarm system and its working method |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110362025A true CN110362025A (en) | 2019-10-22 |
Family
ID=68225208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910781949.2A Pending CN110362025A (en) | 2019-08-23 | 2019-08-23 | Poultry house power alarm system and its working method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110362025A (en) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102231065A (en) * | 2011-06-27 | 2011-11-02 | 李琼春 | Livestock and poultry house culture environment alarm system |
CN202120401U (en) * | 2011-06-27 | 2012-01-18 | 李琼春 | Livestock and poultry house breeding environment alarm system |
CN204288028U (en) * | 2014-12-02 | 2015-04-22 | 河南艾格多智能化设备有限公司 | A kind of poultry environmental control system |
CN106706034A (en) * | 2016-11-28 | 2017-05-24 | 河北农业大学 | Henhouse temperature and humidity mobile phone alarm device and alarm method |
CN206648681U (en) * | 2016-11-28 | 2017-11-17 | 河北农业大学 | Hen house humiture mobile phone alarm device |
CN107505966A (en) * | 2017-08-17 | 2017-12-22 | 广州市华南畜牧设备有限公司 | Management system for breeding and method based on Internet of Things |
CN207200765U (en) * | 2017-05-27 | 2018-04-06 | 深圳市朗锐恒科技开发有限公司 | Intelligent culture control system based on ring control Internet of Things |
CN107895459A (en) * | 2017-12-15 | 2018-04-10 | 蚌埠依爱电子科技有限责任公司 | A kind of plant power failure SMS alarming device and its control method |
CN207637280U (en) * | 2017-12-15 | 2018-07-20 | 蚌埠依爱电子科技有限责任公司 | A kind of farm's power failure SMS alarming device |
US20180360002A1 (en) * | 2015-12-15 | 2018-12-20 | Tibot | Mobile robot, in particular an education robot, for poultry farm and rearing facility implementing one or more robots. |
CN210428168U (en) * | 2019-08-23 | 2020-04-28 | 江苏立华牧业股份有限公司 | Power-off alarm system for livestock and poultry house |
-
2019
- 2019-08-23 CN CN201910781949.2A patent/CN110362025A/en active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102231065A (en) * | 2011-06-27 | 2011-11-02 | 李琼春 | Livestock and poultry house culture environment alarm system |
CN202120401U (en) * | 2011-06-27 | 2012-01-18 | 李琼春 | Livestock and poultry house breeding environment alarm system |
CN204288028U (en) * | 2014-12-02 | 2015-04-22 | 河南艾格多智能化设备有限公司 | A kind of poultry environmental control system |
US20180360002A1 (en) * | 2015-12-15 | 2018-12-20 | Tibot | Mobile robot, in particular an education robot, for poultry farm and rearing facility implementing one or more robots. |
CN106706034A (en) * | 2016-11-28 | 2017-05-24 | 河北农业大学 | Henhouse temperature and humidity mobile phone alarm device and alarm method |
CN206648681U (en) * | 2016-11-28 | 2017-11-17 | 河北农业大学 | Hen house humiture mobile phone alarm device |
CN207200765U (en) * | 2017-05-27 | 2018-04-06 | 深圳市朗锐恒科技开发有限公司 | Intelligent culture control system based on ring control Internet of Things |
CN107505966A (en) * | 2017-08-17 | 2017-12-22 | 广州市华南畜牧设备有限公司 | Management system for breeding and method based on Internet of Things |
CN107895459A (en) * | 2017-12-15 | 2018-04-10 | 蚌埠依爱电子科技有限责任公司 | A kind of plant power failure SMS alarming device and its control method |
CN207637280U (en) * | 2017-12-15 | 2018-07-20 | 蚌埠依爱电子科技有限责任公司 | A kind of farm's power failure SMS alarming device |
CN210428168U (en) * | 2019-08-23 | 2020-04-28 | 江苏立华牧业股份有限公司 | Power-off alarm system for livestock and poultry house |
Non-Patent Citations (1)
Title |
---|
师树恒: "基于ATmega128的禽舍环境控制器的设计", 《华北水利水电学院学报》, vol. 32, no. 04, pages 14 - 18 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN203101995U (en) | Machine room comprehensive environment monitoring and early warning system | |
CN104466736B (en) | Intelligent domestic power distribution device with various electricity protection functions | |
CN208969184U (en) | A kind of electric-leakage detection circuit, device and distribution box | |
CN108550244A (en) | A kind of safety ground monitoring alarm with multichannel | |
CN105759172B (en) | Active earthed system abnormal detector and method | |
CN210428168U (en) | Power-off alarm system for livestock and poultry house | |
CN204359888U (en) | Electric system low-voltage cable disconnection fault intelligent checking system | |
CN202495703U (en) | Breaker for previewing line fault | |
CN105762938B (en) | A kind of distributed photovoltaic monitoring system of distribution network and its control method | |
CN105652191B (en) | A kind of safety return circuit condition monitoring system | |
CN104700541B (en) | A kind of anti-theft detection method based on road lighting cable | |
CN110362025A (en) | Poultry house power alarm system and its working method | |
CN207852033U (en) | A kind of Household security system | |
CN108963961A (en) | A kind of intelligent power supply system based on multi-purpose electric equipment | |
CN109802410A (en) | A kind of zero line break protection device and method | |
CN205103906U (en) | Intelligent place light current system | |
CN105488880B (en) | A kind of security door anti-locking method | |
CN209913250U (en) | Intelligent distribution box capable of automatically detecting and protecting | |
CN202305626U (en) | Intelligent automatic management system for preventing stealing electricity | |
CN202003225U (en) | Detecting device for air-conditioner controller | |
CN200996976Y (en) | Abnormal-voltage alarming indicater in grounding system | |
CN205028363U (en) | Access control case | |
CN205595896U (en) | Net monitored control system is joined in marriage to distributing type photovoltaic | |
CN217404987U (en) | Automatic alarm device for power failure | |
CN104237610A (en) | Passive high-voltage electrification audible and visual alarm |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |