CN109286455B - Communication method and communication system for preventing multi-machine interference - Google Patents
Communication method and communication system for preventing multi-machine interference Download PDFInfo
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- CN109286455B CN109286455B CN201811410508.3A CN201811410508A CN109286455B CN 109286455 B CN109286455 B CN 109286455B CN 201811410508 A CN201811410508 A CN 201811410508A CN 109286455 B CN109286455 B CN 109286455B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
Abstract
The invention provides a communication method and a communication system for preventing multi-machine interference, wherein the remote control method comprises the following steps of transmitting a wireless signal to a device to be selected, receiving the wireless signal by a plurality of signal strength detection units respectively arranged on the device, comparing the strength of the wireless signal received by the signal strength detection unit, determining the device corresponding to the wireless signal with the maximum strength as the device to be selected, the remote control system comprises a plurality of signal strength detection units, a remote controller and a processing unit, wherein the signal strength detection units for detecting the strength of the wireless signal are respectively arranged on the device, the remote controller comprises a transmitting end for transmitting the wireless signal, the processing unit is wirelessly connected with the signal strength detection unit and the remote controller, responding to the strength of the wireless signal detected by the signal strength detection unit, the processing unit compares the maximum strength of the wireless signal, and transmits the signal to the remote controller to establish the remote control connection of the device corresponding to the maximum strength of the wireless signal And (6) connecting.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a communication method and a communication system for preventing multi-machine interference.
Background
At present, air conditioners produced by the same manufacturer on the market can be basically controlled by the same remote controller, so that the air conditioners cannot be controlled accurately in a relatively small environment, such as a test laboratory, an electric appliance store and the like, other air conditioners are caused to malfunction, multi-machine interference occurs, and the use experience of a user is influenced.
Meanwhile, a common avoidance method is that the operation of the selected air conditioner is controlled in a mode of shielding by adding obstacles in a close range, so that the mode is slightly clumsy and the control accuracy is low; or different communication protocols are set for different types of air conditioners for independent control, so that the program generalization cannot be realized, and the software complexity is increased.
In summary, a remote controller capable of automatically recognizing by remote control and internal machine to prevent interference of multiple machines is being designed urgently.
Based on the technical problems, no relevant solution exists; there is therefore a pressing need to find effective solutions to the above problems.
Disclosure of Invention
In order to solve the above-mentioned disadvantages of the prior art, the present invention provides a communication method and a communication system for preventing multi-machine interference, which solves the technical problem of the existing multi-machine interference.
The purpose of the invention is realized by the following technical scheme.
A communication method for preventing multi-machine interference includes the following steps,
a first step of transmitting a wireless signal toward a device to be selected, a plurality of signal strength detection units respectively provided on the devices receiving the wireless signal,
and a second step of comparing the strengths of the wireless signals received by the signal strength detection unit, wherein the device corresponding to the wireless signal with the maximum strength is determined as the device to be selected.
In the communication method for preventing the multi-machine interference, after the equipment to be selected is determined, the remote control connection of the equipment to be selected is established, and the wireless connection of other equipment is closed.
In the communication method for preventing the interference of multiple machines, before the wireless signal is sent to the equipment to be selected, the remote controller is ensured to be in non-remote control connection, and if the remote controller is in remote control connection, the remote controller releases the remote control connection.
In the communication method for preventing the interference of multiple computers, after the signal strength detection units receive wireless signals, the signal strength detection units sample the wireless signals A/D, the wireless signal strength is obtained through signal processing, the wireless signal strength obtained by each signal strength detection unit is sent to the control chip, and the control chip compares the wireless signal strength to obtain the wireless signals with the maximum strength.
In the communication method for preventing the multi-machine interference, when a remote control object needs to be replaced, a replacement signal is sent out, the remote control connection is interrupted, the wireless connection of other equipment is opened, and the first step and the second step are executed.
In the communication method for preventing multi-machine interference, the wireless signal is an infrared signal, a Bluetooth signal, a ZigBee signal or a fire-zero signal.
In the communication method for preventing multi-machine interference, in the second step, when the difference between the wireless signal with the maximum strength and other wireless signals is smaller than a preset threshold, equipment corresponding to the wireless signal with the difference smaller than the preset threshold is responded to simultaneously prompt the adjustment of the transmitting direction of the wireless signal, and then the first step and the second step are executed.
In the communication method for preventing multi-machine interference, after a certain device is determined as a device object which a user wants to control, a one-way communication relation is established between the device object which the user wants to control and a remote controller.
In the communication method for preventing the multi-machine interference, each piece of equipment is provided with a signal receiver, and after a certain piece of equipment is determined as an equipment object which a user wants to control, a remote controller starts the signal receiving function of the equipment, so that the remote controller can identify data sent by the remote controller through a communication protocol.
In the communication method for preventing multi-machine interference, after a one-way communication relation is established between an equipment object which a user wants to control and a remote controller, other unselected equipment is controlled not to receive signals of the remote controller.
In the communication method for preventing the interference of multiple machines, if a control object is expected to be replaced, a fixed signal is sent through a remote controller, the function of receiving signals of the current equipment object is closed, and a candidate mode is entered.
In accordance with another aspect of the present invention, a communication system for preventing multi-machine interference includes,
a plurality of signal strength detecting units for detecting the strength of the wireless signals are respectively arranged on the equipment,
a remote controller including a transmitting terminal for transmitting a wireless signal,
a processing unit which is wirelessly connected with the signal strength detection unit and the remote controller,
in response to the wireless signal strength detected by the signal strength detection unit, the processing unit compares the maximum wireless signal strength to obtain the maximum wireless signal strength, and sends a signal to the remote controller to establish the remote control connection of the equipment corresponding to the maximum wireless signal strength.
In the remote control system, the processing unit is arranged in the remote controller.
In the remote control system, the processing unit comprises a comparison unit, the comparison unit compares whether the wireless signal strength and the difference value between the wireless signal strengths are smaller than a preset threshold value, and when the difference value between the wireless signal with the maximum strength and other wireless signals is smaller than the preset threshold value, the processing unit controls the remote controller to simultaneously respond to equipment corresponding to the wireless signal with the difference value smaller than the preset threshold value and send prompt information for adjusting the transmitting direction of the wireless signal.
The invention has the beneficial effects that:
the condition that multi-machine interference occurs in a small environment is effectively avoided, the air conditioner to be controlled is selected through intensity measurement such as infrared intensity detection, the stability is strong, and the control accuracy is high; when the control object is considered to be replaced, the control object can be reselected only by selecting the 'object removal' function key, so that the method is convenient and quick.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly apparent, and to make the implementation of the content of the description possible for those skilled in the art, and to make the above and other objects, features and advantages of the present invention more obvious, the following description is given by way of example of the specific embodiments of the present invention.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be further explained with reference to the drawings, in which:
fig. 1 is a schematic diagram illustrating steps of a communication method for preventing multi-machine interference according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a communication method for preventing multi-machine interference according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a remote control system according to an embodiment of the present invention.
In the figure: 1. a signal intensity detection unit; 2. a remote controller; 3. and a processing unit.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
For better understanding, fig. 1 is a schematic diagram illustrating steps of a communication method for preventing multi-machine interference according to an embodiment of the present invention, as shown in fig. 1, a communication method for preventing multi-machine interference includes the following steps,
a first step S1 of transmitting a wireless signal toward a device to be selected, a plurality of signal strength detection units 1 respectively provided on the devices receiving the wireless signal,
the second step S2 is to compare the strength of the wireless signal received by the signal strength detecting unit 1, and the device corresponding to the wireless signal with the highest strength is determined as the device to be selected.
To further understand the present invention, in one embodiment, in order to solve the problem that the remote controller 2 controls the object that the user wants to control separately, an infrared intensity detection module is added at the infrared receiving head of the lamp panel to collect the infrared signal intensity in the environment. Furthermore, after power-on reset, the two work simultaneously, in order to ensure logic correctness and no error action of other equipment, under the detection mode, the action of each equipment is executed to set delay, and after data processing is finished and a control object is selected, the control action is executed. And further, other equipment closes the infrared receiving function, and the infrared detection continues to work for waiting for the next control.
In one embodiment, each device in an area realizes multi-machine communication to share data, and then according to the intensity data sent by different internal machines, screening is carried out to automatically select the object which the user wants to control. Then, an instruction is sent to the selected object to enable the selected object to start an infrared receiving function, data sent by the remote controller 2 can be identified through a communication protocol, and other equipment cannot receive infrared signals, so that multi-machine interference is avoided.
In one embodiment, if the control object is desired to be replaced, only the remote controller 2 needs to send a fixed signal, the function of receiving the signal by the infrared receiving head of the current object is turned off, and the candidate mode is entered again. Further, after the first selection is successful, as long as the user does not select [ change the control object ], the subsequent control is only effective for the device, and at this time, the infrared intensity has no influence on the control (within the infrared receiving range).
In one embodiment, fig. 2 is a schematic flowchart of a communication method for preventing multiple-device interference according to an embodiment of the present invention, as shown in the figure, after a device is powered on, the devices in a region are interconnected in a communication manner;
when the power is powered on for the first time, selecting- > 'object removal' function key on the remote controller 2 to ensure that the remote controller 2 does not have a control object at present;
the user selects a device desired to be controlled, presses an arbitrary key of the remote controller 2 at a position close to the other device, and the remote controller 2 transmits an infrared signal. At the moment, the infrared intensity detection module for each external device receives the infrared signal intensity, the data is sent to the control chip through A/D sampling and a signal processing device, and then sent to the communication module, and the data collected by all the devices are processed;
according to the processed data, selecting corresponding equipment which is marked as selected and displayed on a remote controller, wherein the equipment is in operation, other infrared receiving functions are closed, and only a control signal is sent to the selected equipment to enable the selected equipment to open the infrared receiving function, so that the data sent by the remote controller 2 can be received and the independent control is realized;
when the control object is desired to be replaced, a function key- > 'object clearing' is selected on the remote controller 2, the infrared receiving function of the controlled equipment is closed before, and the controlled equipment is displayed as- > equipment-free operation and is prepared for the next control.
In the preferred embodiment of the communication method for preventing multi-machine interference, the function key of "clearing object" can be realized by multiplexing other keys.
In the preferred embodiment of the communication method for preventing multi-machine interference, after the equipment to be selected is determined, the remote control connection of the equipment to be selected is established, and the wireless connection of other equipment is closed.
In the preferred embodiment of the communication method for preventing multi-machine interference, before the wireless signal is sent to the equipment to be selected, the remote controller 2 is ensured to be in non-remote connection, and if the remote controller 2 is in remote connection, the remote connection is released by the remote controller 2.
In the preferred embodiment of the communication method for preventing multi-machine interference, after the signal strength detection unit 1 receives the wireless signal, the signal strength detection unit performs a/D sampling on the wireless signal, the wireless signal strength is obtained through signal processing, the wireless signal strength obtained by each signal strength detection unit 1 is sent to the control chip, and the control chip compares the wireless signal strength to obtain the wireless signal with the maximum strength.
In the preferred embodiment of the communication method for preventing multi-machine interference, when a remote control object needs to be replaced, a replacement signal is sent out, the remote control connection is interrupted, the wireless connection of other equipment is opened, and the first step and the second step are executed.
In a preferred embodiment of the communication method for preventing multi-machine interference, the wireless signal is an infrared signal, a bluetooth signal, a ZigBee signal, or a fire-zero signal.
In the preferred embodiment of the communication method for preventing multiple-unit interference, in the second step, when the difference between the radio signal with the maximum strength and other radio signals is smaller than the predetermined threshold, the device corresponding to the radio signal with the difference smaller than the predetermined threshold is simultaneously responded to prompt the adjustment of the transmission direction of the radio signal, and then the first step and the second step are executed.
According to the invention, the intensity of the infrared signal emitted by remote control is used as a judgment basis for equipment selection, multiple pieces of equipment communicate with one another, the acquired parameters are automatically compared, and the priority of the equipment is arranged; and a function key of 'clearing objects' is arranged, so that the control objects can be quickly replaced.
Fig. 3 is a schematic structural view illustrating a multi-connected air conditioning system according to an embodiment of the present invention, a communication system for preventing interference of multiple units includes,
a plurality of signal strength detecting units 1, the signal strength detecting units 1 for detecting the wireless signal strength are respectively arranged on the equipment,
a remote controller 2 including a transmitting terminal for transmitting a wireless signal,
a processing unit 3 which wirelessly connects the signal strength detecting unit 1 and the remote controller 2,
in response to the wireless signal strength detected by the signal strength detection unit 1, the processing unit 3 compares the maximum wireless signal strength, and sends a signal to the remote controller 2 to establish a remote control connection with the device corresponding to the maximum wireless signal strength.
In a preferred embodiment of the remote control system, the processing unit 3 is built into the remote control 2.
In a preferred embodiment of the remote control system, the processing unit 3 includes a comparing unit, the comparing unit compares whether the wireless signal strength and the difference between the wireless signal strengths are smaller than a predetermined threshold, and when the difference between the wireless signal with the largest strength and other wireless signals is smaller than the predetermined threshold, the processing unit 3 controls the remote controller 2 to respond to the device corresponding to the wireless signal with the difference smaller than the predetermined threshold and send out a prompt message for adjusting the transmitting direction of the wireless signal.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (7)
1. A communication method for preventing multi-machine interference is characterized in that it includes the following steps,
a first step of transmitting a wireless signal toward a device to be selected, a plurality of signal strength detection units respectively provided on the devices receiving the wireless signal,
before sending wireless signals to the equipment to be selected, the remote controller is ensured to be in non-remote control connection, if the remote controller is in remote control connection, the remote controller releases the remote control connection,
a second step of comparing the intensity of the wireless signals received by the signal intensity detection unit, wherein the device corresponding to the wireless signal with the maximum intensity is determined as the device to be selected,
after the equipment to be selected is determined, establishing remote control connection of the equipment to be selected, closing the infrared receiving function of other equipment, continuing the work of infrared detection, waiting for the next control, wherein in the second step, when the difference between the wireless signal with the maximum intensity and other wireless signals is smaller than a preset threshold value, responding to the equipment corresponding to the wireless signal with the difference value smaller than the preset threshold value, prompting to adjust the transmitting direction of the wireless signal, and then executing the first step and the second step,
after power-on reset, the signal strength detection unit and the infrared receiving head work simultaneously, in order to ensure logic correctness and no error action of other equipment, under the detection mode, the action of each equipment is delayed, and after data processing is finished, a control object is selected, the control action is executed.
2. The communication method as claimed in claim 1, wherein the signal strength detecting units receive the wireless signals, the signal strength detecting units perform a/D sampling on the wireless signals, the signal processing is performed to obtain wireless signal strengths, the wireless signal strength obtained by each signal strength detecting unit is transmitted to the control chip, and the control chip compares the wireless signal strengths to obtain the wireless signal with the highest strength.
3. The communication method for preventing multi-machine interference according to claim 1, wherein when a remote control object needs to be replaced, a replacement signal is sent out, the remote control connection is interrupted, wireless connection of other devices is opened, and the first step and the second step are executed.
4. The communication method for preventing multi-machine interference according to claim 1, wherein the wireless signal is an infrared signal, a bluetooth signal, a ZigBee signal, or a fire-null signal.
5. A communication system for preventing multi-machine interference is characterized in that it comprises,
a plurality of signal strength detecting units provided on different devices, for detecting signal strengths of wireless signals transmitted to the different devices;
the remote controller comprises a transmitting terminal for transmitting wireless signals;
a processing unit which wirelessly connects the plurality of signal strength detection units and the remote controller;
when a user transmits a wireless signal towards the equipment to be selected, the signal strength detection units receive the wireless signal and transmit the signal to the processing unit; the processing unit compares the wireless signal strengths detected by the signal strength detection units respectively to obtain the maximum wireless signal strength, and determines the selected equipment which the user wants to control according to the maximum wireless signal strength; the processing unit sends a signal to the remote controller, the remote controller closes the infrared receiving heads of the other devices according to the signal of the processing unit to establish independent remote control connection between the processing unit and the device corresponding to the maximum wireless signal intensity, so that multi-machine interference on the selected device is avoided, the processing unit comprises a comparison unit, the comparison unit compares whether the difference value between the wireless signal intensity and the wireless signal intensity is smaller than a preset threshold value, and when the difference value between the wireless signal with the maximum intensity and the other wireless signals is smaller than the preset threshold value, the processing unit controls the remote controller to simultaneously respond to the device corresponding to the wireless signal with the difference value smaller than the preset threshold value and send prompt information for adjusting the transmitting direction of the wireless signal.
6. The communication system of claim 5, wherein the processing unit is built into the remote control.
7. The communication system as claimed in claim 5, wherein the remote controller is provided with a function key for clearing an object, and the function key for clearing the object is selected so that the remote controller does not have a control device when a control device is replaced, and each device is in a detection mode to select a device desired to be controlled.
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| CN112188706B (en) * | 2019-07-04 | 2023-08-22 | 松下知识产权经营株式会社 | Grouping method of lighting system and lighting system |
| CN115708326A (en) * | 2021-08-20 | 2023-02-21 | 华为技术有限公司 | Anti-interference method and device |
| CN114165928A (en) * | 2021-11-04 | 2022-03-11 | 华帝股份有限公司 | Communication control method of water heater |
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| JP4462614B2 (en) * | 2004-07-05 | 2010-05-12 | ソニー・エリクソン・モバイルコミュニケーションズ株式会社 | Short-range wireless communication system, portable terminal device, and wireless communication device |
| CN103453615A (en) * | 2012-05-31 | 2013-12-18 | 珠海格力电器股份有限公司 | Radio-frequency control processing method and device |
| CN104348524B (en) * | 2013-07-26 | 2017-07-07 | 施耐德电气（澳大利亚）有限公司 | A kind of binding method, central apparatus and ancillary equipment |
| US9082298B2 (en) * | 2013-08-06 | 2015-07-14 | Aengin, Inc. | Remote control apparatus providing infrared control |
| CN104748314A (en) * | 2015-03-31 | 2015-07-01 | 美的集团股份有限公司 | Control system and method for air conditioners |
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