CN112540558A - Implementation method for reducing power consumption of two-wire product - Google Patents
Implementation method for reducing power consumption of two-wire product Download PDFInfo
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- CN112540558A CN112540558A CN202011239800.0A CN202011239800A CN112540558A CN 112540558 A CN112540558 A CN 112540558A CN 202011239800 A CN202011239800 A CN 202011239800A CN 112540558 A CN112540558 A CN 112540558A
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- 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
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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Abstract
The invention discloses a realization method for reducing power consumption of a two-wire product, which comprises a bus interface circuit, a bus communication circuit, a DC/DC power conversion circuit, a power control circuit, an MCU processor, an acquisition circuit, a control circuit and a display circuit, wherein the bus interface circuit is connected with the bus communication circuit; the bus interface circuit is connected with the bus communication circuit and the DC/DC power conversion circuit, the MCU processor is connected with the bus communication circuit, the DC/DC power conversion circuit and the power control circuit, and the acquisition circuit, the control circuit and the display circuit are simultaneously connected with the MCU processor and the power control circuit. Significant reduction in power consumption is achieved without adding additional hardware circuit cost.
Description
Technical Field
The invention relates to the field of automatic fire alarm systems, in particular to a circuit structure for reducing power consumption of a two-wire product and an implementation method.
Background
Currently, in an automatic fire alarm system, most controllers and components need to be connected through a set of signal buses and a set of power lines. The signal wire is responsible for the communication of controller and part, and the power cord is responsible for supplying power for the part.
Although there are few systems using two-wire system, the power consumption of the component product is high, and the wire loss is too large during long-distance communication, so the communication distance is greatly limited. If the communication distance needs to be increased, the wire diameter of the used cable needs to be increased. Although the two-wire product can save a large amount of wires and labor cost, the popularization and the application are blocked due to the defects.
Disclosure of Invention
The invention aims to provide a circuit structure for reducing power consumption of a two-wire product and an implementation method thereof, which mainly solve the problem of high power consumption of the existing two-wire product so as to save wires and labor cost.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a method for reducing power consumption of two-wire products comprises a bus interface circuit, a bus communication circuit, a DC/DC power conversion circuit, a power control circuit, an MCU processor, an acquisition circuit, a control circuit and a display circuit;
the bus interface circuit is connected with the bus communication circuit and the DC/DC power conversion circuit, the MCU processor is connected with the bus communication circuit, the DC/DC power conversion circuit and the power control circuit, and the acquisition circuit, the control circuit and the display circuit are simultaneously connected with the MCU processor and the power control circuit.
Based on the circuit structure, the invention also provides an implementation method of the circuit structure, which comprises the following steps:
(1) at initial power up, the controller bus is set to 24V high for 100 ms. Charging a capacitor of the DC/DC power conversion circuit, converting the 24V voltage into 3.3.V voltage by the DC/DC power conversion circuit, and supplying power to the MCU processor, the power control circuit, the acquisition circuit, the control circuit and the display circuit; initializing the MCU processor; after the capacitor of the DC/DC power conversion circuit is fully charged, the MCU carries out self-inspection on the acquisition circuit, the control circuit and the display circuit; then the MCU processor enters a sleep mode, and the power supply of the acquisition circuit, the control circuit and the display circuit is disconnected through the power supply control circuit;
(2) when the 24V high level of the controller bus lasts for 100ms, the controller communicates with the MCU processor through the bus communication circuit; after capturing the pulse signal sent by the controller, the MCU processor judges whether the pulse signal is a rising edge or a falling edge; if the signal is a rising edge, the MCU processor is awakened from the sleep mode to process the information sent by the controller, and meanwhile, the power supply of the acquisition circuit, the control circuit and the display circuit is switched on through the power supply control circuit to start the functions of the acquisition circuit, the control circuit and the display circuit;
(3) after the MCU processor completes the functions of the step 2, the MCU processor cuts off the power supplies of the acquisition circuit, the control circuit and the display circuit through the power supply control circuit; closing the functions of the acquisition circuit, the control circuit and the display circuit; then, the MCU processor sends the information required by the controller to the controller through a bus communication circuit; then the MCU processor enters a sleep mode; waiting for the next communication with the controller;
(4) and (4) recycling the steps (2) to (3).
Compared with the prior art, the invention has the following beneficial effects:
the circuit structure of the invention is rational, the design is very ingenious, it uses the pulse signal on the bus communication as the trigger source, the dormancy and start of the MCU processor of the controller, thus control the closing and starting of acquisition circuit, control circuit, display circuit, have utilized the characteristic that the output power of DC/DC power module equals the product of input power and conversion efficiency rationally, make the DC/DC power module work under the state that the input voltage is 24V high level, under the condition of not increasing the extra hardware circuit cost, have realized the apparent reduction of the power consumption. When the MCU processor is in the sleep mode, the invention starts the capture interruption to ensure that the pulse signal of the controller can be reliably received.
Drawings
FIG. 1 is a schematic diagram of the circuit structure of the present invention;
FIG. 2 is a schematic circuit diagram of a prior art;
fig. 3 is a schematic diagram of bus communication waveforms.
FIG. 4 is a flow chart of the implementation
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in FIG. 1, the circuit structure of the invention for reducing the power consumption of two-wire products includes a bus interface circuit, a bus communication circuit, a DC/DC power conversion circuit, a power control circuit, an MCU processor, an acquisition circuit, a control circuit, and a display circuit. The bus interface circuit is connected with the bus communication circuit and the DC/DC power conversion circuit, the MCU processor is connected with the bus communication circuit, the DC/DC power conversion circuit and the power control circuit, and the acquisition circuit, the control circuit and the display circuit are simultaneously connected with the MCU processor and the power control circuit.
Fig. 2 is a schematic circuit diagram of the prior art.
The invention uses the pulse signal on the bus communication as a trigger source to control the dormancy and the startup of the MCU processor, thereby controlling the closing and the startup of the acquisition circuit, the control circuit and the display circuit, and realizing the obvious reduction of the power consumption under the condition of not increasing the cost of additional hardware circuits. The implementation steps of the invention are as follows:
fig. 4, at initial power up, the controller bus is high for 100 ms. And charging the capacitor of the DC/DC power conversion circuit, and initializing the MCU processor. After the capacitor of the power conversion circuit is fully charged, the MCU carries out self-checking on the acquisition circuit, the control circuit and the display circuit. Then the MCU processor enters a sleep mode, and the power supply of the acquisition circuit, the control circuit and the display circuit is disconnected through the power supply control circuit;
and when the high level of the bus of the controller lasts for 100ms, the controller is communicated with the MCU processor through the bus communication circuit. After capturing the pulse signal sent by the controller, the MCU processor determines whether the pulse signal is a rising edge or a falling edge (fig. 3). If the signal is a rising edge, the MCU processor is awakened from the sleep mode to process the information sent by the controller, and meanwhile, the power supply of the acquisition circuit, the control circuit and the display circuit is switched on through the power supply control circuit to start the functions of the acquisition circuit, the control circuit and the display circuit;
and (3) after the MCU processor completes the function of the step (2), the MCU processor disconnects the power supplies of the acquisition circuit, the control circuit and the display circuit through the power supply control circuit. And closing the acquisition circuit, the control circuit and the display circuit. Then, the MCU processor sends the information required by the controller to the controller through the bus communication circuit. The MCU processor then enters sleep mode. Waiting for the next communication with the controller.
It should be noted that the bus interface circuit, the bus communication circuit, the DC/DC power conversion circuit, the MCU processor, the power control circuit, the acquisition circuit, the control circuit, and the display circuit in the present invention can all be designed by conventional circuits, and these circuits are not the main innovative points of the present invention, so the present invention does not introduce the detailed structure and working principle thereof in detail.
The invention solves the problems which can not be solved by the prior art through simple circuit and flow design, and has outstanding substantive characteristics and remarkable progress.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. An implementation method for reducing power consumption of a two-wire product is characterized in that: the system comprises a bus interface circuit, a bus communication circuit, a DC/DC power conversion circuit, a power control circuit, an MCU processor, an acquisition circuit, a control circuit and a display circuit;
the bus interface circuit is connected with the bus communication circuit and the DC/DC power conversion circuit, the MCU processor is connected with the bus communication circuit, the DC/DC power conversion circuit and the power control circuit, and the acquisition circuit, the control circuit and the display circuit are simultaneously connected with the MCU processor and the power control circuit.
2. An implementation method for reducing power consumption of a two-wire product according to claim 1, characterized by: the implementation method comprises the following steps:
(1) at initial power up, the controller bus is set to 24V high for 100 ms. Charging a capacitor of the DC/DC power conversion circuit, converting the 24V voltage into 3.3.V voltage by the DC/DC power conversion circuit, and supplying power to the MCU processor, the power control circuit, the acquisition circuit, the control circuit and the display circuit; initializing the MCU processor; after the capacitor of the DC/DC power conversion circuit is fully charged, the MCU carries out self-inspection on the acquisition circuit, the control circuit and the display circuit; then the MCU processor enters a sleep mode, and the power supply of the acquisition circuit, the control circuit and the display circuit is disconnected through the power supply control circuit;
(2) when the 24V high level of the controller bus lasts for 100ms, the controller communicates with the MCU processor through the bus communication circuit; after capturing the pulse signal sent by the controller, the MCU processor judges whether the pulse signal is a rising edge or a falling edge; if the signal is a rising edge, the MCU processor is awakened from the sleep mode to process the information sent by the controller, and meanwhile, the power supply of the acquisition circuit, the control circuit and the display circuit is switched on through the power supply control circuit to start the functions of the acquisition circuit, the control circuit and the display circuit;
(3) after the MCU processor completes the functions of the step 2, the MCU processor cuts off the power supplies of the acquisition circuit, the control circuit and the display circuit through the power supply control circuit; closing the functions of the acquisition circuit, the control circuit and the display circuit; then, the MCU processor sends the information required by the controller to the controller through a bus communication circuit; then the MCU processor enters a sleep mode; waiting for the next communication with the controller;
(4) and (4) recycling the steps (2) to (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011239800.0A CN112540558A (en) | 2020-11-09 | 2020-11-09 | Implementation method for reducing power consumption of two-wire product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011239800.0A CN112540558A (en) | 2020-11-09 | 2020-11-09 | Implementation method for reducing power consumption of two-wire product |
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| CN101782407A (en) * | 2010-02-11 | 2010-07-21 | 合肥工业大学 | Digital vortex street/precession flowmeter powered by battery |
| JP2016526365A (en) * | 2013-05-02 | 2016-09-01 | グリー エレクトリック アプライアンシーズ インク オブ ズーハイＧｒｅｅ Ｅｌｅｃｔｒｉｃ Ａｐｐｌｉａｎｃｅｓ， Ｉｎｃ． Ｏｆ Ｚｈｕｈａｉ | Low power consumption standby circuit device, air conditioner, and air conditioner control method |
| CN107168156A (en) * | 2017-05-16 | 2017-09-15 | 深圳市美好创亿医疗科技有限公司 | Reduce the control circuit and control method of electronic product power consumption |
| CN108123509A (en) * | 2016-11-28 | 2018-06-05 | 华为技术有限公司 | A kind of charge control method and its relevant apparatus |
| CN209086778U (en) * | 2019-01-09 | 2019-07-09 | 浙江航芯科技有限公司 | A kind of low consumption circuit of multichannel input suspend mode and wake-up |
| CN111142654A (en) * | 2019-12-27 | 2020-05-12 | 安凯(广州)微电子技术有限公司 | Low-power-consumption chip architecture system with multiple wake-up source inputs and quick starting method |
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2020
- 2020-11-09 CN CN202011239800.0A patent/CN112540558A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782407A (en) * | 2010-02-11 | 2010-07-21 | 合肥工业大学 | Digital vortex street/precession flowmeter powered by battery |
| JP2016526365A (en) * | 2013-05-02 | 2016-09-01 | グリー エレクトリック アプライアンシーズ インク オブ ズーハイＧｒｅｅ Ｅｌｅｃｔｒｉｃ Ａｐｐｌｉａｎｃｅｓ， Ｉｎｃ． Ｏｆ Ｚｈｕｈａｉ | Low power consumption standby circuit device, air conditioner, and air conditioner control method |
| CN108123509A (en) * | 2016-11-28 | 2018-06-05 | 华为技术有限公司 | A kind of charge control method and its relevant apparatus |
| CN107168156A (en) * | 2017-05-16 | 2017-09-15 | 深圳市美好创亿医疗科技有限公司 | Reduce the control circuit and control method of electronic product power consumption |
| CN209086778U (en) * | 2019-01-09 | 2019-07-09 | 浙江航芯科技有限公司 | A kind of low consumption circuit of multichannel input suspend mode and wake-up |
| CN111142654A (en) * | 2019-12-27 | 2020-05-12 | 安凯(广州)微电子技术有限公司 | Low-power-consumption chip architecture system with multiple wake-up source inputs and quick starting method |
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Application publication date: 20210323 |
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