CN106603112B - Method for wireless multi-machine communication and device for implementing the method - Google Patents
Method for wireless multi-machine communication and device for implementing the method Download PDFInfo
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- CN106603112B CN106603112B CN201611000423.9A CN201611000423A CN106603112B CN 106603112 B CN106603112 B CN 106603112B CN 201611000423 A CN201611000423 A CN 201611000423A CN 106603112 B CN106603112 B CN 106603112B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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Abstract
The present invention relates to a method for wireless multi-machine communication and a device for realizing the method, which can improve the communication efficiency. The method includes the steps of a main transmitter performing a wireless transmission command; collecting voltage, current, temperature, humidity and GPIO data in a data buffer area by a plurality of receivers; the method also comprises the step that the transmitter loads the address of the receiver to be communicated; after receiving the sending command information of the transmitter, the receivers judge whether the channel and the address are the same, and if the channel and the address are the same, the receivers execute the data in the packed buffer area for communication; if not, continuing to carry out the step of data acquisition; the receivers with the same address execute the step of wirelessly transmitting the command. Because only two devices of main sending and main receiving are in communication each time, and other devices in receiving state do not respond to the receiving command because of different addresses, the receiver is prevented from repeatedly responding to the receiving command, the communication efficiency is ensured, and the reliability and the high efficiency are achieved.
Description
Technical Field
The invention relates to a method for wireless multi-machine communication and a device for realizing the method.
Background
2.4G is an open ISM frequency band, and many wireless devices such as WIFI, a wireless mouse, a remote control toy and the like communicate on the frequency band, but for reliable communication, a transmitter and a receiver must be in the same frequency band and the same communication address, and the basis of wireless communication is the same communication frequency band and the same communication address.
When a pair of multiple devices communicate wirelessly, the existing method is based on the fact that the devices operate on the same frequency channel and the same address, and since the devices are not in a transmitting state but in a receiving state, any data command transmitted from a transmitter is responded by other receivers in the receiving state, and then the receivers determine whether to continue the process through the data command. If the transmitter continuously transmits data, the receivers in the receiving state are always in the receiving response state, and other things cannot be done, so that the working efficiency of the receivers is greatly reduced. This is a disadvantage of the existing one-to-many device wireless communication methods.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for wireless multi-machine communication and a device for realizing the method, which can improve the communication efficiency.
The invention relates to a wireless multi-machine communication method, which comprises the following steps:
a step in which the main transmitter executes a wireless transmission command;
collecting voltage, current, temperature, humidity and GPIO data in a data buffer area by a plurality of receivers;
the method is characterized by further comprising the following steps:
the transmitter loads the address of the receiver to be communicated;
after receiving the sending command information of the transmitter, the receivers judge whether the channel and the address are the same, and if the channel and the address are the same, the receivers execute the data in the packed buffer area for communication; if not, continuing to acquire data;
the receivers having the same address execute the wireless transmission command.
The device for realizing wireless multi-machine communication comprises a main transmitter and a plurality of receivers; the transmitter includes:
means for executing a wireless transmit command; the plurality of receivers includes:
a device for collecting voltage, current, temperature, humidity and GPIO data in the data buffer area;
the method is characterized in that: the transmitter also comprises a device for loading the address of the receiver to be communicated;
the plurality of receivers further comprises: after receiving the sending command information of the transmitter, judging whether the channel and the address are the same, if so, executing the data of the packed buffer area for communication; if not, continuing to acquire data;
the device is positioned on a receiver to be communicated and used for executing the wireless transmission command;
the address of the receiver to be communicated is 5 byte address.
As the transmitter loads the address of the receiver to be sought; after receiving the transmission command information of the transmitter, the receiver judges whether the channel and the address are the same, if the channel and the address are the same, the packed buffer data is executed for communication, and if the channel and the address are not the same, the data acquisition is continued, so that only two devices are mainly transmitted and mainly received in each communication, and other devices in a receiving state do not respond to the receiving command because the addresses are different, thereby avoiding the receiver from repeatedly responding to the receiving command, ensuring the communication efficiency and achieving the reliable and high efficiency.
Drawings
Fig. 1 is a flow chart of the operation of the transmitter of the present invention.
Fig. 2 is a flow chart of the operation of the receiver of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings and examples.
In order to better adapt to multiple devices, multiple frequency points can be divided in the ISM section, so that each device works in different frequency channels, and interference can be avoided; even if the communication device works in the same frequency channel, one communication address is different, so that the communication between the devices cannot be mistaken. If frequency hopping is adopted in one-to-many mode, namely, each receiver has one frequency point, the frequency band of the ISM band is not too many, and the data rate 2M is one frequency point, so that 128 frequency channels are obtained. This is not preferable because if the number of devices to communicate is greater than 128, there is a phenomenon that the frequency points overlap. Only one communication address can be made available.
The method of the present invention is illustrated by taking NRF24LE1 chip as an example, NRF24LE1 operates in ISM band, wherein the communication channel is divided into 128 channels at data 2M rate, the communication address is 3-5 bytes, and the present document takes 5 byte address as an example (5 bytes can be any 5 symbols on the keyboard). For example, setting the address of the first device to 0, 0 after { a, B, C, 0, 0} is a number, the next 2 bytes can be made variable, the next 2 bytes of each address are different, so there can be 0-65535 devices, if it is not enough to change the address by 3 bytes.
The address of each device is unique, so that the host address is set as the address of the device to be found when the device is found in the communication (the sender and the receiver must have the same address, or else cannot receive a response signal, i.e. do not know whether the communication is successful or not), and the host address is set as the original local address or the address of the receiver to be communicated next after the communication is successful. Therefore, only two devices of main sending and main receiving are used for each communication because the communication addresses are different, and other devices in the receiving state do not respond to the receiving command because the addresses are different, so that the communication efficiency is ensured. Therefore, the receiver is prevented from repeatedly responding to the receiving command, and the reliability and the high efficiency are achieved.
In particular, reference is made to fig. 1, which is a flow chart of the operation of the transmitter of the present invention. The method comprises the following steps:
step A1, setting the address of the receiver;
step A2, executing wireless transmission command;
step A3, waiting for the receiver to answer the data within a specified time; if the response data is correct, returning to step a4, if timeout or data error occurs, returning to step 2 until the number of retransmissions is greater than the specified value;
step a4, load the next device address, go back to step 1 until the receiver address is used up.
Referring to fig. 2, it is a flow chart of the operation of the receiving and transmitting machine of the present invention. The method comprises the following steps:
step B1, waiting for the transmitter to send a command, and performing data acquisition, including voltage acquisition, current acquisition, temperature acquisition, humidity acquisition and GPIO acquisition; after receiving the sending command information of the transmitter, judging whether the channel addresses are the same, if so, executing the data of the packing buffer area, and if not, continuing to acquire the data;
step B2, execute the wireless transmission command, and then go back to step B1.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A method of wireless multi-machine communication, comprising:
a step in which the main transmitter executes a wireless transmission command;
collecting voltage, current, temperature, humidity and GPIO data in a data buffer area by a plurality of receivers;
the method is characterized by further comprising the following steps:
the transmitter loads the address of a receiver to be communicated, wherein the address of the receiver to be communicated is a 5-byte address, 2 bytes behind the address are variable, and different and unique communication addresses are formed among all devices by changing bytes of the device address under the same frequency channel;
under the same equipment address, a transmitter waits for the data of a receiver in a specified time and specified sending times, and after receiving sending command information of the transmitter, the receivers judge whether a channel and an address are the same or not, and if so, the receivers execute the data of a packed buffer area for communication; if not, continuing to acquire data;
the receivers having the same address execute the wireless transmission command.
2. A device for realizing wireless multi-machine communication comprises a main transmitter and a plurality of receivers; the transmitter includes:
means for executing a wireless transmit command; the plurality of receivers includes:
a device for collecting voltage, current, temperature, humidity and GPIO data in the data buffer area;
the method is characterized in that: the transmitter also comprises a device for loading the address of the receiver to be communicated;
the plurality of receivers further comprises: after receiving the sending command information of the transmitter, judging whether the channel and the address are the same, if so, executing the data of the packed buffer area for communication; if not, continuing to acquire data;
also included is a means for executing the wireless transmit command at the receiver to be communicated.
3. The apparatus for implementing wireless multi-machine communication as claimed in claim 2, wherein: the address of the receiver to be communicated is 5 byte address.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611000423.9A CN106603112B (en) | 2016-11-14 | 2016-11-14 | Method for wireless multi-machine communication and device for implementing the method |
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| CN201611000423.9A CN106603112B (en) | 2016-11-14 | 2016-11-14 | Method for wireless multi-machine communication and device for implementing the method |
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| CN106603112A CN106603112A (en) | 2017-04-26 |
| CN106603112B true CN106603112B (en) | 2021-03-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006197248A (en) * | 2005-01-13 | 2006-07-27 | Sony Corp | Radio communication system, data transmitting device, and radio communication method |
| CN102055611B (en) * | 2010-12-02 | 2013-04-17 | 电子科技大学 | Low-power wireless data acquisition system |
| CN102665292B (en) * | 2012-04-17 | 2014-10-22 | 南京拓诺传感网络科技有限公司 | Sensor node device for wireless sensor network and operation method of sensor node device |
| CN204856862U (en) * | 2015-07-10 | 2015-12-09 | 江西飞尚科技有限公司 | Wireless monitoring devices based on GSM SMS |
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Effective date of registration: 20181224 Address after: Room 503, Building 19, 60 Huihui Road, Minhang District, Shanghai 200000 Applicant after: Shanghai Zhengda Electrical Appliance Group Co., Ltd. Address before: Room WA1025, 1st floor, 1755 Hongmei South Road, Minhang District, Shanghai, 200237 Applicant before: Meaning (Shanghai) Electric Technology Co., Ltd. |
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