CN102520651A - Load controller - Google Patents
Load controller Download PDFInfo
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- CN102520651A CN102520651A CN2011104321421A CN201110432142A CN102520651A CN 102520651 A CN102520651 A CN 102520651A CN 2011104321421 A CN2011104321421 A CN 2011104321421A CN 201110432142 A CN201110432142 A CN 201110432142A CN 102520651 A CN102520651 A CN 102520651A
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 abstract 4
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- 238000000034 method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
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Abstract
The invention provides a load controller, which is convenient and safe in use and used for controlling load in an engine testing system. The load controller comprises a wireless transmitter, a wireless receiver and one or more actuating mechanisms, wherein the wireless receiver is connected with the actuating mechanism, the wireless transmitter consists of a key coding unit, a high-frequency modulating unit and a transmitting unit connected in sequence, and the wireless receiver consists of a high-frequency receiving unit, a demodulating unit and a decoding unit connected in sequence. During running of the load controller which is a wireless remote-control load controller exactly, required control commands are generated from the key coding unit when an operator operates keys, and are modulated to be high-frequency signals by the high-frequency modulating unit, and then sent out by the transmitting unit. Further, the signals sent from the high-frequency receiving unit are demodulated by the demodulating unit, low-frequency signals are extracted and sent to the decoding unit to be decoded, and various command signals can be identified and then sent to the corresponding one or more actuating mechanisms, and finally the one or more actuating mechanisms convert electric power into mechanical action.
Description
Technical field
The invention belongs to the automatic control technology field, specially refer to a kind of load controller that is applied to the engine test system.
Background technology
In engine radiating control pilot system; The engine cold temperature of centering, cooling water temperature, oil temperature under different rotating speeds have different requirement; In order to take into account each rotating speed operating mode; Be necessary to change cold temperature, cooling water temperature, oil temperature in the engine,, improve the dynamic property of engine to satisfy the air inflow needs of engine under different rotating speeds; Improve the economy of engine and guarantee staff's security, therefore just must carry out frequent start and stop control and controlled variable modification engine cooling fan.Conventional engines radiator fan control module is fixed in the engine radiating control pilot system, and is not only inconvenient when manually controlling the radiator fan switch, and hazardous.Equally, also there is the such load of many similar radiator fans in the engine test, also need improves, to improve the comfort level and the security of operation its control mode.
Summary of the invention
The objective of the invention is to propose a kind of easy to operate, safe load controller, the load of engine test system is controlled being used for.
Load controller of the present invention comprises wireless launcher, wireless receiver, topworks, and said wireless receiver links to each other with topworks; Said wireless launcher is connected to form by keyboard-coding unit, high frequency modulated unit, transmitter unit successively; Said wireless receiver is connected to form by high frequency receiving element, demodulating unit, decoding unit successively.
The present invention is a wireless remote remote control load controller; When work; The operator makes the keyboard-coding unit produce needed steering order through button; These steering orders be have some characteristic, be easy to the electric signal distinguished each other, with the instruction of the different sinusoidal signal of frequency as the control button, promptly on behalf of Different control, the sinusoidal signal of different frequency instruct.The command signal that the keyboard-coding unit produces all is the lower electric signal of frequency, can't directly propagate into remote-control target and get on, and also will utilize the high frequency modulated cells modulate to high-frequency signal command signal, could be sent by transmitter unit.The signal of sending here by the high frequency receiving element through the demodulating unit demodulation after, take out low frequency signal, and deliver to decoding unit and decipher, various command signals are differentiated deliver to corresponding topworks, electric energy is changed into mechanical action in topworks.
Further, said topworks has one or more, and said topworks is a relay, and the control end of said relay links to each other with the decoding unit of wireless receiver.The digital signal of decoding unit output can realize the start and stop control to load through the control to relay.
Further, the output terminal of said relay is connected with the thermistor of negative temperature coefficient.When load was radiator fan, the thermistor of negative temperature coefficient can regulate automatically the rotating speed of radiator fan according to the height of environment temperature, makes environment temperature keep constant as far as possible.Promptly when environment temperature raise, the resistance of thermistor reduced, thereby the electric current of the feasible radiator fan of flowing through increases, and has improved the rotating speed of radiator fan, made radiating effect strengthen, and avoided environment temperature too high; In like manner, when environment temperature reduced, the resistance of thermistor increased, thereby the electric current of the feasible radiator fan of flowing through reduces, and has reduced the rotating speed of radiator fan, makes radiating effect weaken, and avoids environment temperature low excessively.
Further, the power end of said topworks links to each other with battery feed in the engine test system through fuse.Though the accumulator in the engine test system is the 12V direct current; But after engine start runs well, the generator on the engine do not stop to charge in batteries, when electric current is excessive; For therefore the protection load equipment can not damage, special series connection fuse is to play protection.
Further, said transmitter unit and high frequency receiving element are equipped with signal amplification circuit, so that process signal is amplified, improve its signal driving force and accuracy.
Further, said keyboard-coding unit is formed by connecting push-button array and single-chip microcomputer, and said decoding unit is a single-chip microcomputer.Adopt high performance single-chip microcomputer as keyboard-coding unit and decoding unit, volume is little, stable performance, antijamming capability are strong, thereby has guaranteed the reliability of controller.
Further, said wireless receiver is provided with the pilot lamp that is used for indicating operating status, with the duty of handled easily personnel distant surveillance wireless receiver.
Load controller cost of the present invention is low, and control is convenient, safety, reliable, is fit to be applied to Long-distance Control is carried out in the load in the engine test system.
Description of drawings
Fig. 1 is the schematic diagram of load controller of the present invention.
Embodiment
Contrast accompanying drawing below; Through the description to embodiment, the effect of mutual alignment between the shape of specific embodiments of the invention such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are done further to specify.
Embodiment 1:
As shown in Figure 1, the load controller of present embodiment comprises wireless launcher 1, wireless receiver 2, topworks 3, and wireless receiver 2 links to each other with topworks 3; Wherein, wireless launcher 1 is connected to form by keyboard-coding unit 11, high frequency modulated unit 12, transmitter unit 13 successively; Wireless receiver 2 is connected to form by high frequency receiving element 21, demodulating unit 22, decoding unit 23 successively, and wireless receiver 2 is provided with the pilot lamp 24 that is used for indicating operating status; Topworks 3 is made up of relay 31; The control end of relay 31 links to each other with the decoding unit of wireless receiver 23; The thermistor 4 of the output terminal of relay 31 through negative temperature coefficient and radiator fan 5 polyphones, the power end of topworks 3 links to each other with accumulator 7 in the engine test system through fuse 6.
The present invention is a wireless remote remote control load controller; When work; The operator makes keyboard-coding unit 11 produce needed steering order through button; These steering orders be have some characteristic, be easy to the electric signal distinguished each other, with the instruction of the different sinusoidal signal of frequency as the control button, promptly on behalf of Different control, the sinusoidal signal of different frequency instruct.The command signal that keyboard-coding unit 11 produces all is the lower electric signal of frequency, can't directly propagate into remote-control target and get on, and also will utilize high frequency modulated unit 12 to be modulated on the high-frequency signal command signal, could be sent by transmitter unit 13.The signal of sending here by high frequency receiving element 21 through demodulating unit 22 demodulation after, take out low frequency signal, and deliver to decoding unit 23 and decipher, various command signals are differentiated deliver to corresponding topworks 3, electric energy is changed into mechanical action in topworks 3.
Claims (7)
1. a load controller is characterized in that comprising wireless launcher, wireless receiver, topworks, and said wireless receiver links to each other with topworks; Said wireless launcher is connected to form by keyboard-coding unit, high frequency modulated unit, transmitter unit successively; Said wireless receiver is connected to form by high frequency receiving element, demodulating unit, decoding unit successively.
2. load controller according to claim 1, it is one or more to it is characterized in that said topworks has, and said topworks is a relay, and the control end of said relay links to each other with the decoding unit of wireless receiver.
3. load controller according to claim 2 is characterized in that the output terminal of said relay is connected with the thermistor of negative temperature coefficient.
4. load controller according to claim 2, the power end that it is characterized in that said topworks links to each other with battery feed in the engine test system through fuse.
5. according to claim 1 or 2 or 3 or 4 described load controllers, it is characterized in that said transmitter unit and high frequency receiving element are equipped with signal amplification circuit.
6. according to claim 1 or 2 or 3 or 4 described load controllers, it is characterized in that said keyboard-coding unit is formed by connecting push-button array and single-chip microcomputer, said decoding unit is a single-chip microcomputer.
7. according to claim 1 or 2 or 3 or 4 described load controllers, it is characterized in that said wireless receiver is provided with the pilot lamp that is used for indicating operating status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104321421A CN102520651A (en) | 2011-12-21 | 2011-12-21 | Load controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104321421A CN102520651A (en) | 2011-12-21 | 2011-12-21 | Load controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102520651A true CN102520651A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104321421A Pending CN102520651A (en) | 2011-12-21 | 2011-12-21 | Load controller |
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| CN (1) | CN102520651A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122460A (en) * | 2013-04-28 | 2014-10-29 | 青岛四方车辆研究所有限公司 | Air-conditioner inverter test bed |
| CN109289942A (en) * | 2018-11-27 | 2019-02-01 | 陈荃钰 | A kind of investigation food and medicine stabilizing test device |
| CN110384383A (en) * | 2018-04-15 | 2019-10-29 | 浙江农林大学 | Long-range curtain controller |
| CN112943531A (en) * | 2021-03-01 | 2021-06-11 | 上海电机学院 | Wireless remote control braking equipment and method for wind driven generator |
| RU2772927C1 (en) * | 2021-11-29 | 2022-05-27 | Цветкова Людмила Васильевна | Controller of technological process management using external electronic and mechanical devices |
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| CN101825110A (en) * | 2010-04-29 | 2010-09-08 | 烟台汽车工程职业学院 | Method for controlling rotating speed of engine cooling fan |
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| CN102123122A (en) * | 2010-01-07 | 2011-07-13 | 无锡爱睿芯电子有限公司 | Modulation-demodulation device and modulation-demodulation method |
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2011
- 2011-12-21 CN CN2011104321421A patent/CN102520651A/en active Pending
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| WO2005002101A1 (en) * | 2003-06-19 | 2005-01-06 | Sony Corporation | Radio communication system performing multi-carrier transmission, reception device, reception method, transmission device, transmission method, delay time calculation device, and delay time calculation method |
| CN1766942A (en) * | 2004-10-27 | 2006-05-03 | 上海帝来邦电子科技有限公司 | 477-566MHZ micropower wireless remote control transmitting, receiving circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122460A (en) * | 2013-04-28 | 2014-10-29 | 青岛四方车辆研究所有限公司 | Air-conditioner inverter test bed |
| CN110384383A (en) * | 2018-04-15 | 2019-10-29 | 浙江农林大学 | Long-range curtain controller |
| CN109289942A (en) * | 2018-11-27 | 2019-02-01 | 陈荃钰 | A kind of investigation food and medicine stabilizing test device |
| CN112943531A (en) * | 2021-03-01 | 2021-06-11 | 上海电机学院 | Wireless remote control braking equipment and method for wind driven generator |
| RU2772927C1 (en) * | 2021-11-29 | 2022-05-27 | Цветкова Людмила Васильевна | Controller of technological process management using external electronic and mechanical devices |
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Application publication date: 20120627 |