CN105149313A - Wireless bluetooth fume hood used in laboratories and mating ventilation system thereof - Google Patents
Wireless bluetooth fume hood used in laboratories and mating ventilation system thereof Download PDFInfo
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- CN105149313A CN105149313A CN201510596136.8A CN201510596136A CN105149313A CN 105149313 A CN105149313 A CN 105149313A CN 201510596136 A CN201510596136 A CN 201510596136A CN 105149313 A CN105149313 A CN 105149313A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
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Abstract
The invention relates to the field of ventilation equipment used in laboratories and discloses a wireless bluetooth fume hood used in laboratories and a mating ventilation system thereof. The ventilation system comprises a wireless transmission device, a ventilation device and a remote control device, wherein the remote control device is connected with the ventilation device by the wireless transmission device; the ventilation device is ventilation equipment used in laboratories and comprises semitight ventilation space used for operating experimental apparatuses; the semitight ventilation space at least comprises an air exhaust outlet used for forming negative pressure in the semitight ventilation space; the remote control device is connected with the ventilation device by the wireless transmission device and controls the ventilation device; the wireless transmission device at least comprises a wireless transceiving device or a bluetooth device. The ventilation system has the advantages that remote control of the ventilation device can be achieved, thus further reducing the hardware complexity of the control device and reducing the cost of the control device; the ventilation system is suitable to refit on existing devices, so that the ventilation system has better application value.
Description
Technical field
The present invention relates to use for laboratory field of ventilation equipment, fume hood such as in laboratory, vent cabinet or similar devices or corollary equipment use, in particular to a kind of laboratory wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, the object of Long-distance Control can be realized.
Background technology
Fume hood, also known as fuming cupboard or vent cabinet, the gas of being discharged in particular space by blower fan realizes negative pressure, thus realizes isolation to a certain degree, is laboratory, particularly a kind of main equipment of chemical laboratory.Purposes reduces contacting of experimenter and pernicious gas.Isolated then needs uses glove box completely.Fume hood is the primary barrier that protection personnel prevent toxic chemical flue gas and endanger.It as important safe backuup equipment, as at chemical experiment procedure failure, effectively can exhale pernicious gases when chemical fumes, dust and toxic gas produce, protection staff and laboratory environment.Typically, fume hood includes: universal: be applicable to general chemical laboratory.Without pipeline type: built-in high-efficiency activated carbon filter, directly can be discharged into indoor.Compensating ventilation cabinet: supplement air outdoor, alleviate the load of laboratory air-conditioning.Connection type: expand lab space, for large-scale instrument is provided convenience.Desktop: be contained in the vent cabinet on experimental bench.Two sides type: can operate from two sides.Grounding: be applicable to large-scale experimental device.
In prior art, the air exhausting device of fume hood is normally manually operated, or adopt wired mode to be connected to a control room, place and carry out centralized Control, but find in actual use, in laboratory environments, the connecting line of wired connection is extremely easily corroded, and fixing control room operation inconvenience, and installation cost is high, the mode of the artificial single control that causes some laboratories still to be continued to use controls the opening and closing of fume hood.Further, for the existing large quantities of fume hoods existed, its improvement cost of the mode of wired connection is too high, is therefore also one of reason of being applied of its non-large area.
In view of this, be necessary to develop a kind of ventilation unit that can carry out controlled in wireless.
Summary of the invention
The present invention is directed in prior art the shortcoming lacking controlled in wireless, provide a kind of laboratory wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, by wireless connection devices such as application bluetooths, achieve the object of the controlled in wireless to ventilation unit preferably.
For achieving the above object, the present invention can take following technical proposals:
A kind of laboratory wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, the remote control comprising radio transmitting device, ventilation unit and be connected with described ventilation unit by radio transmitting device;
Described ventilation unit is use for laboratory ventilation equipment, and comprise one for the semitight airspace of operation experiments utensil, described semitight airspace at least comprises a wind exhausting outlet for forming negative pressure in described semitight airspace;
Described remote control is set up with the connection of described ventilation unit by described radio transmitting device and is controlled ventilation unit;
Described radio transmitting device at least comprises wireless transmitter or blue-tooth device;
Described remote control realizes at least comprising step to the control of ventilation unit: described remote control sends director data bag to described ventilation unit, after described ventilation unit receives described director data bag, the content according to the director data bag after parsing makes corresponding actions.
As the optional scheme of one, in the embodiment of the application, described ventilation unit also comprises volume adjusting apparatus; Described volume adjusting apparatus is for regulating the size of the air quantity of being discharged by wind exhausting outlet.
As the optional scheme of one, in the embodiment of the application, described ventilation unit also comprises at least one guiding device; Described guiding device is arranged between described wind exhausting outlet and described semitight airspace, and the air-flow being flowed through wind exhausting outlet discharge by described semitight airspace is divided into the less air-flow of multiply.
As the optional scheme of one, in the embodiment of the application, described ventilation unit at least also comprises a data storage device and a treating apparatus;
Described data storage device is used for parse operation after described ventilation unit receives described director data bag, and the storage of the immediate status of described ventilation unit when providing described treating apparatus to operate ventilation unit;
Described treating apparatus is for resolving described director data bag, sequentially read according to the data format recorded in advance, the director data of described data format and instruction packet is mated, data after coupling are divided at least two parts, wherein, by the director data that matches with the described data format data field stored in described data storage device, and the address of these part instructs data is put into the queue region of described data storage device;
Described treating apparatus order reads the address of the director data that queue region is preserved, and the data of reading are sent to the actuating unit of ventilation unit, what described actuating unit referred to described ventilation unit is provided with the corresponding interface, can receive described director data and perform the device of required movement.
As the optional scheme of one, in the embodiment of the application, described treating apparatus is by the director data that do not match with the described data format data field stored in described data storage device, not matching instruction is sent to described remote control, and sending not after matching instruction, immediately the director data do not matched is sent to remote control, the director data that described treating apparatus will repeat not match described in transmission is until receive the successful transmission instruction of described remote control transmission;
Described in described remote control receives not after matching instruction, receive the director data do not matched immediately, and after the director data do not matched described in successfully receiving, return to described treating apparatus and successfully send instruction.
As the optional scheme of one, in the embodiment of the application, described director data bag also comprises safety check part;
Described safety check part is contained in described director data bag randomly, and do not match with described data format, described remote control is after the director data do not matched described in receiving, by the described director data do not matched compared with safety check part, if do not mated, then send a warning.
As the optional scheme of one, in the embodiment of the application, described remote control is after connecting with described ventilation unit, and described remote control sends initialization directive to ventilation unit after sending director data bag to described ventilation unit;
After described ventilation unit receives initialization directive, described treating apparatus is according to the content of director data bag, test instruction is sent to actuating unit, the test success instruction that described ventilation unit returns according to actuating unit, using the data with the successful instruction command adapted thereto packet of test as described data format stored in data storage device;
Described actuating unit, after the described test instruction of reception, if test successfully, then returns the successful instruction of test.
As the optional scheme of one, in the embodiment of the application, described ventilation unit also comprises instruction retransmission unit;
Described instruction retransmission unit is used for being connected with the instruction retransmission unit of adjacent or close ventilation unit, and the director data received is forwarded to other coupled instruction retransmission units.
As the optional scheme of one, in the embodiment of the application, described treating apparatus, after ventilation unit is connected with remote control, sends link order to described instruction retransmission unit;
After described instruction retransmission unit receives described link order, by the director data that receives stored in described data storage device, and store instruction to treating apparatus return data;
After described treating apparatus receives described data processing instructions, the director data that instruction retransmission unit receives is mated with the director data that remote control sends, if the same send link order to instruction retransmission unit, and the data read by director data are sent to actuating unit perform.
In addition, as the optional scheme of one, extraly security module can also be installed, be transmitted by the data between filtration treatment device and radio transmitting device, effectively can solve the problem of data security.
The present invention has following remarkable technique effect:
Can realize the remote wireless control to ventilation units such as fume hoods, decrease and control cost, and security is higher, the equipment such as current Artificial Control fume hood can be replaced completely.
Further, owing to being optimized for its controlled in wireless step, the problem owing to covering the limited loading error occurring caused effectively can be prevented.In addition, within the while of in the packet, have security mechanism, the security of data can be promoted further.
Accompanying drawing explanation
Fig. 1 is the modular structure connection diagram of laboratory wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
A kind of laboratory wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, as shown in Figure 1, the remote control 300 comprising radio transmitting device 100, ventilation unit 200 and be connected with described ventilation unit 200 by radio transmitting device 100; Radio transmitting device 100 cited by the present embodiment can use the such as wireless device such as bluetooth or wifi, connection between radio transmitting device 100 and ventilation unit 200 and remote control 300 is completed by existing interface, these existing interfaces are included in the hardware interface that said apparatus is applied, this hardware interface should meet the interface standard that those skilled in the art says interface or this area that can know, when adopting standard hardware interface, that can reduce said apparatus realizes expense.
Described ventilation unit 200 is use for laboratory ventilation equipment, comprises one for the semitight airspace 400 of operation experiments utensil, and described semitight airspace 400 at least comprises a wind exhausting outlet 500 for forming negative pressure in described semitight airspace 400; Outside it, ventilation unit 200 can also comprise other actuating unit, and the formation of described negative pressure depends on the startup of blower fan, and described blower fan is also one of the actuating unit as ventilation unit 200.Further, other actuating unit can also comprise hazardous gas checkout gear, the distributed control device of multiple blower fan is for the multiple independently blower fans of control etc., those skilled in the art can know and added in actuating unit by existing device, and by director data that certain hardware interface makes it can accept remote control 300 sending.
Described remote control 300 is set up with the connection of described ventilation unit 200 by described radio transmitting device 100 and is controlled ventilation unit 200, connection between described remote control 300 and radio transmitting device 100 at least comprises instant connection, namely after a remote control 300 enters the signal cover of radio transmitting device 100, user sends instruction by remote control 300 to ventilation unit 200, after radio transmitting device 100 receives instruction, record is carried out in the connection of remote control 300, and the data content transmission sent by remote control 300 is in the data storage device 203 of ventilation unit 200, this data content at least should comprise and may be used for identifying the identification code of remote control 300 or the hardware characteristics code of machine or similar information, further, in the present embodiment, also allow remote control 300 to generate an identification code voluntarily to identify.
Described radio transmitting device 100 at least comprises wireless transmitter or blue-tooth device.Those skilled in the art can use other similar wireless device to realize wireless transmission, but the radio transmitting device 100 in the present embodiment is except connecting, and also at least should comprise other above-mentioned functions.Further, radio transmitting device 100 also should have the heartbeat mechanism keeping being connected between remote control 300 with ventilation unit 200, unlike the prior art, the heartbeat mechanism of radio transmitting device 100 has been connected by its intrinsic both-way communication, specifically, receive the data of user control transmission at radio transmitting device 100 after, start heartbeat mechanism immediately, and without the need to waiting for the data end of transmission of user control, now radio transmitting device 100 sends an instruction to ventilation unit 200 and waits for, if ventilation unit 200 returns this instruction, then illustrate and connect normally, radio transmitting device 100 is waited for and by the data retransmission that receives to ventilation unit 200, if in data transmission procedure, the data memory buffer of radio transmitting device 100 at the expiration but do not receive the instruction that ventilation unit 200 returns yet, then stop the data of reception remote control 300 and return failure command, return user by remote control 300, and determine whether resend or overhaul by user.Relatively, send in the process of data at ventilation unit 200 to remote control 300, radio transmitting device 100, still without the need to waiting pending data to be transmitted, namely sends instruction also according to whether return instruction judges the connection status with remote control 300 synchronously to remote control 300.By application technique scheme, the connect hours of whole system can be reduced greatly, and the simplification of hardware configuration can be coordinated, reduce hardware cost as much as possible, and can effectively improve its efficiency of transmission and joint efficiency.
Described remote control 300 realizes at least comprising step to the control of ventilation unit 200: described remote control 300 sends director data bag to described ventilation unit 200, after described ventilation unit 200 receives described director data bag, the content according to the director data bag after parsing makes corresponding actions.Director data bag is divided into some parts, and every part adopts suitable separator to separate, this separator it can be used as stet to use of can making an appointment.Further, every part of director data bag can apply different data contents, and normally control the instruction of the actuating unit of ventilation unit 200, this instruction can be performed device and identifies and make required movement according to instruction.In addition, some data also should be transferred to ventilation unit 200, but these data can not be performed device identification significantly, therefore can return remote control after coupling.Those skilled in the art can add some distinguished symbols in the data, to ensure that data are not performed device misidentification.This step can reduce default data type to large extent, reduces hardware cost.
Further, described ventilation unit 200 also comprises volume adjusting apparatus 201; Described volume adjusting apparatus 201 is for regulating the size of the air quantity of being discharged by wind exhausting outlet 500.As the one of actuating unit, volume adjusting apparatus 201 is the very important assemblies of of ventilation unit 200, and volume adjusting apparatus 201 carries out regulating according to the instruction that remote control 300 sends and controls the size of air quantity.
Further, described ventilation unit 200 also comprises at least one guiding device 202; Described guiding device 202 is arranged between described wind exhausting outlet 500 and described semitight airspace 400, and is divided into the less air-flow of multiply by being flowed through the air-flow that wind exhausting outlet 500 discharges by described semitight airspace 400.The structure of guiding device 202 can be fin, tabular or hole shape.Further, actuating unit also comprises the controlling organization be installed on guiding device 202, for controlling the air-flow guide direction of guiding device 202, and regulates accordingly according to the director data of remote control 300.
Further, described ventilation unit 200 at least also comprises data storage device 203 and a treating apparatus 204.
Specifically, described data storage device 203 is for the parse operation after receiving described director data bag at described ventilation unit 200, and the storage of the immediate status of described ventilation unit 200 when providing described treating apparatus 204 to operate ventilation unit 200.Connection between data storage device 203 and treating apparatus 204 and radio transmitting device 100 can adopt existing interface.
Described treating apparatus 204 is for resolving described director data bag, parse operation specifically comprises: sequentially read according to the data format recorded in advance, the director data of described data format and instruction packet is mated, data after coupling are divided at least two parts, wherein, by the director data that matches with the described data format data field stored in described data storage device 203, and the address of these part instructs data is put into the queue region of described data storage device 203.
Described treating apparatus 204 order reads the address of the director data that queue region is preserved, and the data of reading are sent to the actuating unit of ventilation unit 200, what described actuating unit referred to described ventilation unit 200 is provided with the corresponding interface, can receive described director data and perform the device of required movement.
Further, described treating apparatus 204 is by the director data that do not match with the described data format data field stored in described data storage device 203, not matching instruction is sent to described remote control 300, and sending not after matching instruction, immediately the director data do not matched is sent to remote control 300, the director data that do not match described in described treating apparatus 204 will repeat to send is until receive the successful transmission instruction that described remote control 300 sends.
Described in described remote control 300 receives not after matching instruction, receive the director data do not matched immediately, and after the director data do not matched described in successfully receiving, return to described treating apparatus 204 and successfully send instruction.
Further, described director data bag also comprises safety check part.
Described safety check part is contained in described director data bag randomly, and do not match with described data format, described remote control 300 is after the director data do not matched described in receiving, by the described director data do not matched compared with safety check part, if do not mated, then send a warning.Further, in remote control 300, at least retain the content of director data bag of a part, if the memory capacity of remote control 300 is enough, then can the content of intactly reserve statement packet.When the lack of memory capacity of remote control 300, the safety check part in director data bag can remain by this device usually, and other parts of director data bag are except stet, then can not preserve, to reduce the data capacity of preservation.
Further, described remote control 300 is after connecting with described ventilation unit 200, and described remote control 300 sends initialization directive to ventilation unit 200 after sending director data bag to described ventilation unit 200.
After described ventilation unit 200 receives initialization directive, described treating apparatus 204 is according to the content of director data bag, test instruction is sent to actuating unit, the test success instruction that described ventilation unit 200 returns according to actuating unit, using the data with the successful instruction command adapted thereto packet of test as described data format stored in data storage device 203.
Described actuating unit, after the described test instruction of reception, if test successfully, then returns the successful instruction of test.
Further, described ventilation unit 200 also comprises instruction retransmission unit 205; The purposes of this device is; consider that ventilation unit 200 can use usually in a large number; when the signal cover of remote control 300 is limited, needs to control ventilation unit 200 outside the signal cover of remote control 300, and completed by instruction retransmission unit 205.
The director data received for being connected with the instruction retransmission unit 205 of adjacent or close ventilation unit 200, and is forwarded to other coupled instruction retransmission units 205 by described instruction retransmission unit 205.
Further, described treating apparatus 204, after ventilation unit 200 is connected with remote control 300, sends link order to described instruction retransmission unit 205;
After described instruction retransmission unit 205 receives described link order, by the director data that receives stored in described data storage device 203, and store instruction to treating apparatus 204 return data;
After described treating apparatus 204 receives described data processing instructions, the director data that instruction retransmission unit 205 receives is mated with the director data that remote control 300 sends, if the same send link order to instruction retransmission unit 205, and the data read by director data are sent to actuating unit perform.
Further, give a preferably index parameter selection for reference in the present embodiment, through overtesting, above-mentioned step has good duty under following parameter index state, and face wind speed is monitored: 0.3 ~ 0.5m/s, VAV control; Noise monitoring: cabinet external environment noise is greater than 55dB and causes warning; Temperature-humidity monitoring: comprise in cabinet, cabinet external monitor; Sliding door controls: automatically controlled, and mobile client remote control; Wireless monitor function: adopt WIFI to carry out data transmission and control, defer to IEEE802.11 agreement.Monitoring content comprises: system switching, duty, data acquisition and upload, data display; Further, remote control 300 can be set to mobile client APP: the intelligent movable device being applicable to Android mobile phone, IOS system mobile phone or other similar systems.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (9)
1. laboratory wireless blue tooth fume hood, cabinet equipment and a supporting ventilating system thereof, is characterized in that, comprise radio transmitting device (
100), ventilation unit (
200) and by radio transmitting device (
100) and described ventilation unit (
200) be connected remote control (
300);
Described ventilation unit (
200) be use for laboratory ventilation equipment, comprise one for operation experiments utensil semitight airspace (
400), described semitight airspace (
400) at least comprise a wind exhausting outlet (
500) for described semitight airspace (
400) interior formation negative pressure;
Described remote control (
300) by described radio transmitting device (
100) set up with described ventilation unit (
200) connection and control ventilation unit (
200);
Described radio transmitting device (
100) at least comprise wireless transmitter or blue-tooth device;
Described remote control (
300) realize to ventilation unit (
200) control at least comprise step: described remote control (
300) to described ventilation unit (
200) send director data bag, described ventilation unit (
200) receive described director data bag after, make corresponding actions according to the content of director data bag after resolving.
2. laboratory according to claim 1 wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, is characterized in that, described ventilation unit (
200) also comprise volume adjusting apparatus (
201); Described volume adjusting apparatus (
201) for regulate by wind exhausting outlet (
500) size of air quantity of discharging.
3. laboratory wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof according to claims 1 or 2, is characterized in that, described ventilation unit (
200) also comprise at least one guiding device (
202); Described guiding device (
202) be arranged at described wind exhausting outlet (
500) and described semitight airspace (
400) between, and will by described semitight airspace (
400) flow through wind exhausting outlet (
500) air-flow that discharges is divided into the less air-flow of multiply.
4. laboratory according to claim 3 wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, is characterized in that, described ventilation unit (
200) at least also comprise a data storage device (
203) and a treating apparatus (
204);
Described data storage device (
203) for described ventilation unit (
200) receive parse operation after described director data bag, and provide described treating apparatus (
204) operation ventilation unit (
200) time described ventilation unit (
200) the storage of immediate status;
Described treating apparatus (
204) for resolving described director data bag, sequentially read according to the data format recorded in advance, the director data of described data format and instruction packet is mated, data after coupling are divided at least two parts, wherein, by the director data that matches with described data format stored in described data storage device (
203) data field, and the address of these part instructs data is put into described data storage device (
203) queue region;
Described treating apparatus (
204) order reads the address of director data that queue region is preserved, and the data of reading are sent to ventilation unit (
200) actuating unit, described actuating unit refer to described ventilation unit (
200) the corresponding interface is installed, described director data can be received and perform the device of required movement.
5. laboratory according to claim 4 wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, is characterized in that, described treating apparatus (
204) by the director data that do not match with described data format stored in described data storage device (
203) data field, to described remote control (
300) send not matching instruction, and to send not after matching instruction, immediately the director data do not matched is sent to remote control (
300), described treating apparatus (
204) will repeat to send described in the director data that do not match until receive described remote control (
300) the successful transmission instruction that sends;
Described remote control (
300) receive described in not after matching instruction, receive the director data do not matched immediately, and after the director data do not matched described in successfully receiving, to described treating apparatus (
204) return and successfully send instruction.
6. laboratory according to claim 5 wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, is characterized in that, described director data bag also comprises safety check part;
Described safety check part is contained in described director data bag randomly, and does not match with described data format, described remote control (
300) after the director data do not matched described in receiving, by the described director data do not matched compared with safety check part, if do not mated, then send a warning.
7. laboratory according to claim 6 wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, is characterized in that, described remote control (
300) with described ventilation unit (
200) connect after, described remote control (
300) to described ventilation unit (
200) send director data bag after, to ventilation unit (
200) send initialization directive;
Described ventilation unit (
200) receive initialization directive after, described treating apparatus (
204) according to the content of director data bag, send test instruction to actuating unit, described ventilation unit (
200) the test success instruction that returns according to actuating unit, using with the data of the successful instruction command adapted thereto packet of test as described data format stored in data storage device (
203);
Described actuating unit, after the described test instruction of reception, if test successfully, then returns the successful instruction of test.
8. laboratory according to claim 4 wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, is characterized in that, described ventilation unit (
200) also comprise instruction retransmission unit (
205);
Described instruction retransmission unit (
205) for adjacent or close ventilation unit (
200) instruction retransmission unit (
205) connect, and the director data received is forwarded to coupled other instruction retransmission units (
205).
9. laboratory according to claim 8 wireless blue tooth fume hood, cabinet equipment and supporting ventilating system thereof, is characterized in that, described treating apparatus (
204) ventilation unit (
200) and remote control (
300) after connection, to described instruction retransmission unit (
205) send link order;
Described instruction retransmission unit (
205) receive described link order after, by the director data that receives stored in described data storage device (
203), and to treating apparatus (
204) return data storage instruction;
Described treating apparatus (
204) receive described data processing instructions after, to instruction retransmission unit (
205) director data that receives and remote control (
300) director data that sends mates, if the same to instruction retransmission unit (
205) send link order, and the data read by director data are sent to actuating unit perform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510596136.8A CN105149313B (en) | 2015-09-17 | 2015-09-17 | Laboratory wireless blue tooth fume hood, cabinet equipment and its supporting ventilating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510596136.8A CN105149313B (en) | 2015-09-17 | 2015-09-17 | Laboratory wireless blue tooth fume hood, cabinet equipment and its supporting ventilating system |
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| CN105149313B CN105149313B (en) | 2017-12-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678314A (en) * | 2017-10-16 | 2018-02-09 | 海宁欣源电子科技有限公司 | A kind of VAV control systems |
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| CN202741410U (en) * | 2012-08-30 | 2013-02-20 | 中国石化工程建设有限公司 | Heating internal air supplementation type ventilation case for steel-aluminum structure laboratory |
| CN104043632A (en) * | 2013-03-15 | 2014-09-17 | 凯沃尼科学公司 | Ductless laboratory hood apparatus |
| CN103236960A (en) * | 2013-04-18 | 2013-08-07 | 重庆邮电大学 | Method and system for data interaction between home server and plurality of terminals |
| CN103272818A (en) * | 2013-06-05 | 2013-09-04 | 广州穗剑实验室科技有限公司 | Novel energy-saving environment-friendly numerical-control fume hood of laboratory |
| CN103777603A (en) * | 2014-01-17 | 2014-05-07 | 杭州天丽科技有限公司 | Intelligent equipment control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107678314A (en) * | 2017-10-16 | 2018-02-09 | 海宁欣源电子科技有限公司 | A kind of VAV control systems |
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