CN201259364Y - Automatic control and management system for refrigerating house - Google Patents
Automatic control and management system for refrigerating house Download PDFInfo
- Publication number
- CN201259364Y CN201259364Y CNU2008200277777U CN200820027777U CN201259364Y CN 201259364 Y CN201259364 Y CN 201259364Y CN U2008200277777 U CNU2008200277777 U CN U2008200277777U CN 200820027777 U CN200820027777 U CN 200820027777U CN 201259364 Y CN201259364 Y CN 201259364Y
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- management system
- industrial computer
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Abstract
The utility model relates to a refrigerated warehouse automatic control and management system, which comprises a PLC programmable controller, a data acquisition device and actuating equipment which are arranged in each refrigerated warehouse. The data acquisition device and the actuating equipment are respectively connected with the data acquisition interface and the control signal output interface of the PLC programmable controller; the system is characterized in that each PLC programmable controller is respectively and correspondingly connected with a terminal modem, and each terminal modem is connected with an industrial computer arranged in a remote surveillance and control centre through a public wire telephone network and a control end modem; a camera is also arranged in each refrigerated warehouse, and the camera is connected with one data interface of a wireless video server; the tripod head of the camera is connected with the other data interface of the wireless video server; and the wireless video server is communicated with the industrial computer arranged in the remote surveillance and control centre through a wireless wide area network. The system has the advantages that the refrigerated warehouse remote fully automatic intelligent control is realized, a plurality of refrigerated warehouses can be remotely monitored through one surveillance and control centre, the manpower can be greatly saved, and the cost is low.
Description
Technical field
The utility model relates to the Cold Storage Control technical field, specifically is a kind of freezer control and management system automatically.
Background technology
The control of present most of freezers is artificial, especially middle walk-in refrigerator.What have that quite a few operating personnel carries out is not through " expert's scheme " after the demonstration, and operation does not have scientific basis, thus carry out more random, the waste that make in the Cold Storage Control running to electric energy, manually reaches groundwater resources is surprising.
In Cold Storage Control that has and the management, temperature, humidity data available display are presented at operating room, need not open cold-storage door again and enter ice-cold refrigerator observation; But dash and remove condensing during frost on the evaporimeter when judging whether to open water valve, will enter still that freezer observes, very inconvenient, its control is also still artificial.
Though at present indivedual freezers (mostly being the refrigeration unit of making refrigerant with fluorine Lyons) have been realized with single-chip microcomputer+sensor+Control Component or have been controlled the automatic start-stop and the defrosting of unit with electric contact thermometer+Control Component, but can not finish full automatic Based Intelligent Control process, easily 80,000,100,000 transformation input is the major reason that walk-in refrigerator can not be realized automation control in causing, and has become the following middle walk-in refrigerator of over thousands of ton and can not realize the major obstacle of control automatically; And can only closely control in single storehouse, can not realize many storehouses Long-distance Control.When the freezer that needs control is many, need a lot of manpowers of corresponding increase like this, thereby cause the manpower waste.
The utility model content
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of freezer control and management system automatically, and it has realized the long-range fully-automatic intelligent control of freezer, many storehouses time human-saving, and be convenient to many storehouses and manage simultaneously and control.
For addressing the above problem, the utility model by the following technical solutions: this freezer is control and management system automatically, comprises the PLC Programmable Logic Controller, data acquisition unit and the actuating equipment that are provided with in each freezer; Data acquisition unit, actuating equipment are connected with data acquisition interface, the control signal output interface of PLC Programmable Logic Controller respectively; Described data acquisition unit comprises the temperature sensor that is arranged in the freezer, is arranged on the pressure controller on the refrigeration press, the travel switch that cooperates with each valve; Described actuating equipment comprises refrigeration press, blower fan, valve opening controller, on-the-spot acoustic-optic alarm; The corresponding respectively terminal modem that connects a public cable telephone network of each PLC Programmable Logic Controller, described each terminal modem is connected with the remote control terminal modem by public cable telephone network, and the remote control terminal modem is connected with the industrial computer that is arranged on remote monitoring center; Also be provided with the whether video camera of operate as normal of monitoring device in described each freezer, video camera is connected with a data interface of wireless video server; The The Cloud Terrace of video camera is connected with another data-interface of wireless video server by decoder; The wireless video server passes through the radio wide area network communication with the industrial computer that is arranged on remote monitoring center.
During work, data acquisition unit arrives the PLC Programmable Logic Controller with the transfer of data that collects, and after the PLC Programmable Logic Controller is according to computing instruction is sent to actuating equipment and carries out corresponding action.Simultaneously, the PLC Programmable Logic Controller transfers to data message the industrial computer of Surveillance center through terminal modem, public cable telephone network and remote control terminal modem.The monitor staff understands routine data and the failure code that PLC sends by public cable telephone network by the industrial computer analysis, according to the program parameter of understanding result and need of work remotely modifying PLC Programmable Logic Controller.When scene temperature or actuating equipment were unusual, the on-the-spot acousto-optic alarm activation of PLC Controlled by Programmable Controller sent warning.
The video image that video camera is taken is transferred to the wireless video server, is sent out the industrial computer that is transferred to Surveillance center by radio wide area network by the wireless video server.The pointer of the electric current of Surveillance center by video image all-weather remote monitoring freezer scene, voltage, manometer.As note abnormalities, send someone to go to site inspection.As note abnormalities, after the long-range deciphering PLC program state, belong to the hardware problem commander, send the personnel of patrolling and examining and go to site examining and repairing, belong to need to revise the PLC program then long-range and finish modification of program.The wireless video server receives behind the control The Cloud Terrace signal by decoder cradle head control, finishes functions such as the zoom control to video camera.
As further technical scheme of the present utility model:
In automatic control of this freezer and management system, be connected with Surveillance center's acoustic-optic alarm on the described industrial computer.When on-the-spot acousto-optic alarm activation was reported to the police, PLC can be transferred to industrial computer by public cable telephone network with corresponding information, and industrial computer also starts the acoustic-optic alarm of Surveillance center synchronously, the staff of notice Surveillance center.
In automatic control of this freezer and management system, be connected with short message sender on the described industrial computer, can send the information of required understanding by this short message sender to the freezer management personnel.
In automatic control of this freezer and management system, be connected with on the described on-the-spot acoustic-optic alarm and detect the unusual temperature recorder of temperature of ice house.When in case the related device in the freezer can not be realized control automatically according to temperature, unusual if scene temperature takes place, just temperature recorder can start on-the-spot acoustooptic alarm system.
In automatic control of this freezer and management system, all be connected with the differential pressure pickup of the liquid level that detects the ammonia fluid reservoir on described each PLC Programmable Logic Controller.The liquid level of ammonia fluid reservoir is after differential pressure pickup is gathered, data are sent into PLC, and PLC exports corresponding valve opening controller, control the liquid supply rate of ammonia fluid reservoir to evaporimeter automatically, make the liquid level of ammonia fluid reservoir remain on the scope of an appointment, to reach best cooling condition.
The beneficial effects of the utility model are: it has realized the long-range fully-automatic intelligent control of freezer, and a Surveillance center can monitor a lot of freezers, and can realize the place remote monitoring, can significantly save manpower.Be applicable to the control and the management of various freezers, and cost is low.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further:
Accompanying drawing 1 is the structured flowchart of the utility model embodiment.
The specific embodiment
As shown in Figure 1, this freezer is control and management system automatically, comprises the PLC Programmable Logic Controller, data acquisition unit and the actuating equipment that are provided with in each freezer.Data acquisition unit, actuating equipment are connected with data acquisition interface, the control signal output interface of PLC Programmable Logic Controller respectively.Data acquisition unit comprises the temperature sensor that is arranged in the freezer, is arranged on the pressure controller on the refrigeration press, the travel switch that cooperates with each valve.Actuating equipment comprises refrigeration press, blower fan, valve opening controller, on-the-spot acoustic-optic alarm.The corresponding respectively terminal modem that connects a public cable telephone network of the PLC Programmable Logic Controller of each freezer, described each terminal modem is connected with the remote control terminal modem by public cable telephone network, and the remote control terminal modem is connected with the industrial computer that is arranged on remote monitoring center.Also be provided with varifocal thermal camera in each freezer, be used for whether operate as normal of instrument such as monitor current table, voltmeter, Pressure gauge.Video camera in each freezer is connected with the wireless video data in server interface of this freezer.The The Cloud Terrace of video camera is connected with another data-interface of wireless video server by decoder.The wireless video server receives behind the control The Cloud Terrace signal by decoder cradle head control, finishes functions such as the zoom control to video camera.The wireless video server is selected the wireless video server based on CDMA for use.The wireless video server of each freezer passes through the cdma wireless network communication with the industrial computer that is arranged on remote monitoring center.Be connected with Surveillance center's acoustic-optic alarm on the industrial computer.When on-the-spot acousto-optic alarm activation was reported to the police, PLC can be transferred to industrial computer by public cable telephone network with corresponding information, and industrial computer also starts the acoustic-optic alarm of Surveillance center synchronously, the staff of notice Surveillance center.Also be connected with short message sender on the industrial computer, short message sender will send to warning message one or more manager's of appointment mobile phone, remind manager that the work of Surveillance center is monitored, automatic control system waits device shutdown and patrols and examines personnel's processing simultaneously.
During work, data acquisition unit arrives the PLC Programmable Logic Controller with the transfer of data that collects, and after the PLC Programmable Logic Controller is according to computing instruction is sent to actuating equipment and carries out corresponding action.
Be transferred to the PLC Programmable Logic Controller as the temperature data in the detected freezer of temperature sensor, the temperature value default according to the PLC Programmable Logic Controller,---------------liquid valve valve opening controller opens supplying valve 0.25 circle---the inlet valve valve opening controller opens inlet valve of uploading two retainings that starts water pump of uploading a grade that starts press of when if detected temperature reaches turn-on temperature, then opening 5 of air-coolers successively.Refrigeration unit for double-pressing machine control: press on duty starts earlier, and standby press starts (words that put into operation as the standby press of needs) after 2 minutes.
All valves are just to change 1.1 times of time value that opening action accumulates the strict durations of runs of carrying out closing motions, to prevent can not fully closing (voltage is higher when for example opening, and voltage but is low when closing) because of reasons such as interference.Close for limit excessive simultaneously and cause the valve tension, valve close the angle that is limited in appointment.Travel switch is realized Stroke Control and spacing.After Stroke Control and the spacing surveillance summary computing as take place unusually then to trigger and report to the police or action such as stop.
In the press course of work, pressure controller is sent to the PLC Programmable Logic Controller with the variation of pressure, after the computing of PLC Programmable Logic Controller instruction is sent to inlet valve valve opening controller, and the pressure of inspiration(Pi) value is controlled at about 0.15 MPa.
Autostop then is that the PLC Programmable Logic Controller is closed each equipment one by one according to the opposite order of start after reaching shutdown temperature by temperature sensor detection actual temperature.
Defrosting control is according to the time of accumulation press runs, after press work reaches certain hour, then starts defrosting.During defrosting, stop press, blower fan earlier according to setting, to close supplying valve that---the water valve opening controller cuts out cooling water valve 0.25 circle, and------------cutting out the pump,---open cooling water valve, close the defrosting water valve---delay time 3 minutes---judges whether that according to temperature value the needs start lowers the temperature to defrosting 10 minutes to the boiling water pump to defrosting valve opening controller opens defrosting water valve 0.25 circle.
The liquid valve is closed in shutdown (especially before the defrosting) several minutes in advance, and the ammoniacal liquor in the evaporimeter of as far as possible finding time is in case the liquid hammer (overtaking other vehicles) during start behind the defrosting.The backup measure of anti-liquid hammer is: only make the first time behind defrosting air-cooler work alone at least 60 seconds with the thick fog shape ammoniacal liquor of condensation because of the defrosting generation before the start, ensure that sucking the interior ammoniacal liquor of press cavity reduces to harmless level, promptly opens press with " energy consumption under the no refrigerating state is reduced to minimum " after other start then makes air-cooler work only delay time one second.The opening and stop following too this principle of other equipment, for example water pump leaves and stops.
After defrosting is finished automatically, monitoring defrosting valve closed condition, not in place if the defrosting valve does not cut out or cuts out, then stopping alarm realizes preventing the action interlocking of the defrosting while freezing.This interlocking principle is followed in the action of equipment such as motor too, is for example just changeing simultaneously not only but also reversing not to be allowed to.
PLC Programmable Logic Controller image data also sends when instructing the action of control actuating equipment, and the PLC Programmable Logic Controller is transferred to data message the industrial computer of Surveillance center through terminal modem, public cable telephone network, remote control terminal modem.Routine data and the failure code that the PLC of each freezer sends understood in the industrial computer analysis, but according to the program parameter of understanding result and need of work remotely modifying PLC Programmable Logic Controller.When scene temperature or actuating equipment were unusual, the on-the-spot acousto-optic alarm activation of PLC Controlled by Programmable Controller sent warning.The PLC Programmable Logic Controller is according to the detected data message of protectiveness checkout gear, judges overcurrent takes place, and will trigger according to different equipment, different hazard ratings then that single device stops, equipment component stops, armamentarium stops and warning.In addition as superhigh temperature, ultralow temperature, hydraulic pressure is too high, hydraulic pressure is low excessively, oil pressure difference is normal, high pressure gas is unusual, ammonia odor detects, the defrosting valve opening is unusual, Stroke Control and spacing supervision etc. unusually; all will trigger the acoustic-optic alarm of scene and Surveillance center and carry out protectiveness shutdown, in the monitoring of program, equipment maintenance in service all protectiveness projects.
The video image of video camera multi-angle scanning shoot is transferred to the wireless video server, is sent out the industrial computer that is transferred to Surveillance center by wireless wide area network by the wireless video server.The pointer of the electric current of Surveillance center by video image all-weather remote monitoring freezer scene, voltage, manometer.As note abnormalities, send someone to go to site inspection.Can stipulate that also staff 2～3 days patrols and examines once to the device context routine.
Be connected with temperature recorder on the on-the-spot acoustic-optic alarm of each freezer.This temperature recorder is a redundant apparatus.The interval of record is adjustable from several seconds to seven days, can write down 32000 data at most.This temperature recorder is set with alarm temperature, in case the related device in the control system can not realize that control automatically causes the scene temperature generation unusual according to temperature, temperature recorder just can excite on-the-spot acoustic-optic alarm.
This system can discern powering on again after the power failure by the program in the PLC Programmable Logic Controller, and according to the state of each valve before having a power failure, the valve that need close after powering on is again finished automatically and is closed (but except the defrosting valve, if system is that defrosting is not finished before having a power failure, the back defrosting that powers on is again proceeded, and the defrosting valve stays open state.Also can manually finish closing of power failure late gate), then differentiating automatically needs whether to start shooting.
Situation for a freezer " two storehouses of a cover refrigeration unit ", but the difference of this system's each temperature of ice house of computing, the PLC Programmable Logic Controller of each freezer is regulated the platform number of air-cooler running in the freezer separately thus automatically, and autobalance two warehouse temperature differences are in 0.15 degree centigrade.And two storehouses keeping commodity are not when being same kind, the storage humidity that requires generally is inconsistent, then carry out two temperature control programs (is ON but need the switch of manually setting " two temperature Standard Selection "), two storehouse temperature are remained in the range of set temperature separately.
Claims (5)
1, a kind of freezer is controlled and management system automatically, comprises the PLC Programmable Logic Controller, data acquisition unit and the actuating equipment that are provided with in each freezer; Data acquisition unit, actuating equipment are connected with data acquisition interface, the control signal output interface of PLC Programmable Logic Controller respectively; Described data acquisition unit comprises the temperature sensor that is arranged in the freezer, is arranged on the pressure controller on the refrigeration press, the travel switch that cooperates with each valve; Described actuating equipment comprises refrigeration press, blower fan, valve opening controller, on-the-spot acoustic-optic alarm; It is characterized in that: the corresponding respectively terminal modem that connects a public cable telephone network of each PLC Programmable Logic Controller, described each terminal modem is connected with the remote control terminal modem by public cable telephone network, and the remote control terminal modem is connected with the industrial computer that is arranged on remote monitoring center; Also be provided with the whether video camera of operate as normal of monitoring device in described each freezer, video camera is connected with a data interface of wireless video server; The The Cloud Terrace of video camera is connected with another data-interface of wireless video server by decoder; The wireless video server passes through the radio wide area network communication with the industrial computer that is arranged on remote monitoring center.
2, a kind of freezer according to claim 1 is controlled and management system automatically, it is characterized in that: be connected with Surveillance center's acoustic-optic alarm on the described industrial computer.
3, a kind of freezer according to claim 1 and 2 is controlled and management system automatically, it is characterized in that: be connected with short message sender on the described industrial computer.
4, a kind of freezer according to claim 3 is controlled and management system automatically, it is characterized in that: be connected with on the described on-the-spot acoustic-optic alarm and detect the unusual temperature recorder of temperature of ice house.
5, a kind of freezer according to claim 1 is controlled and management system automatically, it is characterized in that: the differential pressure pickup that all is connected with the liquid level that detects the ammonia fluid reservoir on described each PLC Programmable Logic Controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200277777U CN201259364Y (en) | 2008-09-12 | 2008-09-12 | Automatic control and management system for refrigerating house |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200277777U CN201259364Y (en) | 2008-09-12 | 2008-09-12 | Automatic control and management system for refrigerating house |
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| CN201259364Y true CN201259364Y (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200277777U Expired - Fee Related CN201259364Y (en) | 2008-09-12 | 2008-09-12 | Automatic control and management system for refrigerating house |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032751A (en) * | 2010-11-29 | 2011-04-27 | 广东紫金正天药业有限公司 | Intelligent remote monitoring and management system for refrigerated counter |
| CN102288004A (en) * | 2011-06-14 | 2011-12-21 | 烟台同大制冷设备有限公司 | Method for controlling variable output of refrigerating capacity of compressor unit in multiple-refrigeratory refrigeration system |
| CN102752583A (en) * | 2012-06-29 | 2012-10-24 | 浙江大学 | Pump station video monitoring system based on smart phone |
| CN102759251A (en) * | 2012-07-18 | 2012-10-31 | 广东志高空调有限公司 | Freezing and refrigerating storage/box with cloud function |
| CN102759242A (en) * | 2012-07-18 | 2012-10-31 | 广东志高空调有限公司 | Low-temperature refrigeration storage/bin with cloud features |
| CN103454982A (en) * | 2012-05-28 | 2013-12-18 | 上海远动科技有限公司 | SCADA and security integrated control system and application thereof |
| CN103759494A (en) * | 2014-02-18 | 2014-04-30 | 山东省果树研究所 | Temperature controlling and defrosting device of fruit ammonia machine refrigeratory and using method of device |
| CN103900320A (en) * | 2014-04-01 | 2014-07-02 | 杭州泽大仪器有限公司 | Intelligent regulatory controlling and monitoring system of medical reefer and application method of intelligent regulator controlling and monitoring system |
| CN105069964A (en) * | 2015-07-09 | 2015-11-18 | 安庆市凌康机电产品设计有限公司 | Safety device of cold storage warehouse |
| CN105674680A (en) * | 2016-01-06 | 2016-06-15 | 陈星宏 | Cold closet temperature control method based on key detection point temperature collection |
| CN105698479A (en) * | 2014-11-27 | 2016-06-22 | 青岛海尔股份有限公司 | Temperature anomaly prompt device and method applied to refrigerator |
| CN105806033A (en) * | 2014-12-31 | 2016-07-27 | 青岛中科软件股份有限公司 | Graphics frozen sample management system |
| CN106556214A (en) * | 2015-09-24 | 2017-04-05 | 特博梭富特公司 | The state monitoring apparatus and its method of extremely low temperature freezer |
| CN107657404A (en) * | 2017-08-16 | 2018-02-02 | 深圳市启惠智能科技有限公司 | A kind of management method of freezer state, server |
| CN107763919A (en) * | 2016-08-19 | 2018-03-06 | 广州鲜之源生态冷链技术有限公司 | A kind of more storehouse group managing and control systems of intelligence |
| CN108955070A (en) * | 2012-07-27 | 2018-12-07 | 博西华电器（江苏）有限公司 | Intelligent refrigerator, the refrigerator system comprising the intelligent refrigerator and its control method |
| WO2019033316A1 (en) * | 2017-08-16 | 2019-02-21 | 深圳市启惠智能科技有限公司 | Cold storage state management method, and server |
| CN110139027A (en) * | 2013-08-28 | 2019-08-16 | 东芝生活电器株式会社 | Camera system and photographic device |
| CN111007903A (en) * | 2019-11-27 | 2020-04-14 | 安徽聚力粮机科技股份有限公司 | Remote linkage control system for storage equipment |
| CN111123825A (en) * | 2019-12-20 | 2020-05-08 | 四川鑫锐投资有限公司 | Agricultural product market freezer management system |
| CN112460902A (en) * | 2020-12-11 | 2021-03-09 | 珠海格力电器股份有限公司 | Refrigerator defrosting method and refrigerator |
| CN113758110A (en) * | 2021-09-10 | 2021-12-07 | 徐州五行冷暖设备有限公司 | Multi-refrigeration-house centralized intelligent temperature control management system |
| CN114326886A (en) * | 2022-01-22 | 2022-04-12 | 哈尔滨久茂机电设备有限公司 | Integrated control system cabinet for refrigeration house or air-conditioned cold store |
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2008
- 2008-09-12 CN CNU2008200277777U patent/CN201259364Y/en not_active Expired - Fee Related
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032751A (en) * | 2010-11-29 | 2011-04-27 | 广东紫金正天药业有限公司 | Intelligent remote monitoring and management system for refrigerated counter |
| CN102288004A (en) * | 2011-06-14 | 2011-12-21 | 烟台同大制冷设备有限公司 | Method for controlling variable output of refrigerating capacity of compressor unit in multiple-refrigeratory refrigeration system |
| CN103454982A (en) * | 2012-05-28 | 2013-12-18 | 上海远动科技有限公司 | SCADA and security integrated control system and application thereof |
| CN102752583A (en) * | 2012-06-29 | 2012-10-24 | 浙江大学 | Pump station video monitoring system based on smart phone |
| CN102759251A (en) * | 2012-07-18 | 2012-10-31 | 广东志高空调有限公司 | Freezing and refrigerating storage/box with cloud function |
| CN102759242A (en) * | 2012-07-18 | 2012-10-31 | 广东志高空调有限公司 | Low-temperature refrigeration storage/bin with cloud features |
| CN102759251B (en) * | 2012-07-18 | 2015-08-19 | 广东志高空调有限公司 | A kind of freezer/case of band cloud function |
| CN108955070A (en) * | 2012-07-27 | 2018-12-07 | 博西华电器（江苏）有限公司 | Intelligent refrigerator, the refrigerator system comprising the intelligent refrigerator and its control method |
| CN110139027B (en) * | 2013-08-28 | 2021-10-29 | 东芝生活电器株式会社 | Imaging system and imaging device |
| CN110139027A (en) * | 2013-08-28 | 2019-08-16 | 东芝生活电器株式会社 | Camera system and photographic device |
| CN103759494A (en) * | 2014-02-18 | 2014-04-30 | 山东省果树研究所 | Temperature controlling and defrosting device of fruit ammonia machine refrigeratory and using method of device |
| CN103759494B (en) * | 2014-02-18 | 2015-10-28 | 山东省果树研究所 | Fruit ammonia machine freezer temperature control defroster and using method thereof |
| CN103900320A (en) * | 2014-04-01 | 2014-07-02 | 杭州泽大仪器有限公司 | Intelligent regulatory controlling and monitoring system of medical reefer and application method of intelligent regulator controlling and monitoring system |
| CN105698479A (en) * | 2014-11-27 | 2016-06-22 | 青岛海尔股份有限公司 | Temperature anomaly prompt device and method applied to refrigerator |
| CN105806033A (en) * | 2014-12-31 | 2016-07-27 | 青岛中科软件股份有限公司 | Graphics frozen sample management system |
| CN105069964A (en) * | 2015-07-09 | 2015-11-18 | 安庆市凌康机电产品设计有限公司 | Safety device of cold storage warehouse |
| CN106556214A (en) * | 2015-09-24 | 2017-04-05 | 特博梭富特公司 | The state monitoring apparatus and its method of extremely low temperature freezer |
| CN105674680A (en) * | 2016-01-06 | 2016-06-15 | 陈星宏 | Cold closet temperature control method based on key detection point temperature collection |
| CN107763919A (en) * | 2016-08-19 | 2018-03-06 | 广州鲜之源生态冷链技术有限公司 | A kind of more storehouse group managing and control systems of intelligence |
| CN107657404A (en) * | 2017-08-16 | 2018-02-02 | 深圳市启惠智能科技有限公司 | A kind of management method of freezer state, server |
| WO2019033316A1 (en) * | 2017-08-16 | 2019-02-21 | 深圳市启惠智能科技有限公司 | Cold storage state management method, and server |
| CN111007903A (en) * | 2019-11-27 | 2020-04-14 | 安徽聚力粮机科技股份有限公司 | Remote linkage control system for storage equipment |
| CN111007903B (en) * | 2019-11-27 | 2021-06-08 | 安徽聚力粮机科技股份有限公司 | Remote linkage control system for storage equipment |
| CN111123825A (en) * | 2019-12-20 | 2020-05-08 | 四川鑫锐投资有限公司 | Agricultural product market freezer management system |
| CN112460902A (en) * | 2020-12-11 | 2021-03-09 | 珠海格力电器股份有限公司 | Refrigerator defrosting method and refrigerator |
| CN113758110A (en) * | 2021-09-10 | 2021-12-07 | 徐州五行冷暖设备有限公司 | Multi-refrigeration-house centralized intelligent temperature control management system |
| CN114326886A (en) * | 2022-01-22 | 2022-04-12 | 哈尔滨久茂机电设备有限公司 | Integrated control system cabinet for refrigeration house or air-conditioned cold store |
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