CN106160891B - The detection method and device and air-conditioning equipment of communication quality - Google Patents

Abstract

A communication quality detection method and device, and an air conditioner. The method is used to process objects, including: acquiring a plurality of detection data of the detection object at different times; each detection data contains the signal transmission power and signal reception power of the detection object at that time; according to each The magnitude of the signal transmission power in the detection data determines the influence weight of the detection data; according to the signal transmission power, signal reception power and the influence weight of the detection object at different times, the detection The communication quality of the object. The invention determines the communication quality of the detection object according to the signal transmission power and signal reception power of the detection object, and solves the problems of how to detect the communication quality and how to set the number and position of repeaters.

Description

Method and device for detecting communication quality and air-conditioning equipment

technical field

The invention relates to the technical field of air-conditioning equipment, in particular to a method and device for detecting communication quality and air-conditioning equipment.

Background technique

In a wireless multi-connection system, wireless modules are used between internal and external units to maintain communication. Wireless communication does not need to use communication lines, which greatly reduces the cost and complexity of installation. However, due to various signal interference, the communication quality of internal and external units changes at any time. How to detect the communication quality of the wireless multi-connection internal and external units and how to set the repeater when the communication quality is relatively poor is a difficult problem.

Contents of the invention

One of the objectives of the present invention is to provide a communication quality detection method to solve the problem in the prior art that the communication quality of the internal and external units of the air conditioner cannot be detected.

In some demonstrative embodiments, the method for detecting communication quality is used for processing an object, comprising: acquiring a plurality of detection data of the detection object at different times; each of the detection data includes the The signal transmission power and signal reception power at this moment; according to the size of the signal transmission power in each of the detection data, the influence weight of the detection data is determined; according to the signal transmission power of the detection object at different times, The received signal power and the influence weight are used to analyze the communication quality of the detected object.

In some demonstrative embodiments, the method for detecting communication quality is used as a device for data transfer between the detection object and the processing object, including: acquiring detection data sent by the detection object at different times; wherein, Each of the detection data includes the signal transmission power of the detection object at that moment; when the detection data is received, the signal reception power of the detection object is detected, and it is determined that the detection object is transmitting The received signal power at the moment of the detected data; sending the detected data including the signal transmitted power and the signal received power to the processing object.

Another object of the present invention is to provide a communication quality detection device.

In some illustrative embodiments, the device for detecting communication quality includes: a receiving module, configured to acquire a plurality of detection data of the detection object at different times; each detection data includes the detection object at different times The signal transmission power and signal reception power at this moment; the matching module is used to determine the influence weight of the detection data according to the size of the signal transmission power in each of the detection data; the analysis module is used to determine the influence weight of the detection data according to the detection The signal transmission power, the signal reception power, and the influence weight of the object at different times are used to analyze the communication quality of the detection object.

In some illustrative embodiments, the air conditioner, as a device for data transfer between the detection object and the processing object, includes: a receiving module, configured to acquire detection data sent by the detection object at different times; wherein, Each of the detection data includes the signal transmission power of the detection object at that moment; the detection module is configured to detect the signal reception power of the detection object when receiving the detection data, and determine the signal transmission power of the detection object The signal reception power of the detection object at the moment when the detection data is sent; the sending module is used to send the detection data including the signal transmission power and the signal reception power to the processing object.

Illustrative embodiments of the present invention include the following advantages over the prior art:

According to the signal transmission power and signal receiving power of the detection object, determine the communication quality of the detection object, solve the problems of how to detect the communication quality, and how to set the number and position of repeaters.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Figure 1 is a flow diagram according to an illustrative embodiment of the invention;

Figure 2 is a flow diagram according to an illustrative embodiment of the invention;

Figure 3 is a flow diagram according to an illustrative embodiment of the invention;

FIG. 4 is a schematic diagram of a system structure according to an illustrative embodiment of the present invention;

Figure 5 is a flow diagram according to an illustrative embodiment of the invention;

Fig. 6 is a schematic structural diagram of a system adjusted according to an illustrative embodiment of the present invention;

FIG. 7 is a structural block diagram of processing objects according to an illustrative embodiment of the present invention;

FIG. 8 is a block diagram of an air conditioning apparatus according to an illustrative embodiment of the present invention.

Detailed ways

In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

As shown in Figure 1, a communication quality detection method is disclosed, which is used for processing objects, and the processing objects can be indoor units/outdoor units in a multi-connected air-conditioning system, or external detection devices;

Methods include:

S11. Obtain a plurality of detection data of the detection object at different times; each detection data includes the signal transmission power and signal reception power of the detection object at that time;

S12. Determine the influence weight of the detection data according to the magnitude of the signal transmission power in each detection data;

S13. Analyze the communication quality of the detection object according to the signal transmission power, the signal reception power, and the influence weight of the detection object at different times.

The invention determines the communication quality of the detection object according to the signal transmission power and the signal reception power of the detection object, and solves the problems of how to detect the communication quality and how to set the number and position of repeaters.

Among them, in step S12, the signal transmission power can be matched with a preset weight form to determine the weight; the weight form is shown in Table 1:

Table 1:

For example, if the transmission power of the signal in the detection data is 25mw, the weight corresponding to this power can be determined to be 0.15 according to the weight table.

In some demonstrative embodiments, before analyzing the communication quality of the detection object, the method further includes: finding detection data with consistent signal transmission power and signal reception power from a plurality of detection data, as valid data. Wherein, the number of valid data can be one or more.

For example, for 10 detection data, the signal transmission power and signal reception power are:

1. 40mw, 30mw; 2. 40mw, 29mw; 3. 35mw, 31mw;

4. 40mw, 30mw; 5. 40mw, 29mw; 6. 50mw, 35mw;

7. 49mw, 32mw; 8. 40mw, 30mw; 9. 50mw, 35mw;

10. 45mw, 31mw.

The signal transmission power of 40mw and the signal receiving power of 30mw are selected as valid data, then the number of valid data is 3, which are the detection data received for the first time, the fourth time and the eighth time respectively; the signal can also be If the transmitting power is 50mw and the signal receiving power is 35mw, it is selected as valid data, and there are 2 valid data, which are the detection data received for the 6th and 9th times; or, the signal transmitting power is 35mw, and the signal receiving power is 31mw. If it is determined as valid data, only the third detection data is valid data.

In some demonstrative embodiments, analyzing the communication quality of the detection object according to the signal transmission power, signal reception power, and the influence weight of the detection object at different times, specifically includes: according to the The signal transmission power, the signal reception power, and the influence weight in the effective data determine the communication quality of the detection object.

In some demonstrative embodiments, the determining the communication quality of the detection object according to the signal transmission power, signal reception power, and the influence weight in the valid data specifically includes:

Calculate the communication quality of the detected object according to the following formula:

Among them, M is the communication quality score, Ni is the number of valid data in the N detection data, Qi is the influence weight of the valid data, TxPwi is the signal transmission power in the valid data, and RxPwi is the signal receiving power in the valid data .

In some demonstrative embodiments, after the determination of the communication quality of the detected object, the method further includes:

S21. If the calculated communication quality score is less than a preset quality threshold, set at least one repeater for the detected object to enhance its communication quality;

S22. By adjusting the positional relationship between the repeater and the detection object, and detecting the communication quality of the detection object after each adjustment;

S23. According to the detection result, determine the placed quantity and position of the repeaters.

The above process can be completed through manual debugging, or the distance influence relationship between the repeater and air-conditioning equipment can be obtained by using the constructed digital model and the pre-test experiment to simulate the communication quality of the test object and determine the placement of the repeater quantity and location.

As shown in Figure 3, a detection method of communication quality is disclosed, which is used as a device (such as an indoor unit or an outdoor unit) for data transmission between the detection object and the processing object, including:

S31. Obtain detection data sent by the detection object at different times; wherein, each detection data includes the signal transmission power of the detection object at that time;

S32. When the detection data is received, detect the signal reception power of the detection object, and determine the signal reception power of the detection object at the moment when the detection data is sent;

S33. Send the detection data including the signal transmission power and the signal reception power to the processing object.

As shown in Figure 4, the multi-connected air-conditioning system first establishes a network to build a hierarchical structure in the system. The indoor unit is the common ancestor node of all indoor units in the system, and each indoor unit is a descendant node of the outdoor unit. Each indoor unit has its parent node device, and the parent node device can be an outdoor unit or another indoor unit. Each device must communicate through its node relationship. Taking indoor unit 13# as an example, 13# communicates with the outdoor unit through 13#→7#→3#→outdoor unit.

The above method is to send its own signal transmission power to its parent node device through the inspection object, and its parent node device detects its signal reception power, and sends the detection data including the signal transmission power and signal reception power of the detection object to the processing object , wherein, during the process of the parent node sending the detection data to the processing object, the detection data does not change any more, only the transmission process.

As shown in Fig. 4, Fig. 5, and Fig. 6, the wireless modules 1#-17# of the internal unit jointly generate a wireless network tree topology structure with the wireless module of the external unit according to the wireless networking communication rules. The communication rules in a tree topology are: a node can only communicate directly with its parent node and its own child nodes; when a message is sent from one node to another, the message must move up the tree from the source node to the nearest common ancestor, and then move down the tree to reach the destination node. For example, the communication between the external machine and 12# should be carried out along the path of external machine--1#--5#--12#. The wireless module of the external machine is a coordinator and the only common ancestor, which plays the role of network construction and control, and stores the routing information of the entire network, including direct child nodes and grandchildren nodes of each direct child node.

During the networking process, due to the interference of the on-site environment, the communication quality between the two nodes will be reduced, resulting in the failure or poor quality of communication between the internal unit and the external unit. At this time, it is necessary to add a wireless relay near the internal unit. to increase the wireless signal strength.

The wireless communication quality detection device mainly includes a power supply module, a communication module, a calculation module and a display module. The power supply module provides power for the detection device, the communication module establishes communication with the external unit in a wired or wireless manner, the calculation module calculates the communication quality value of each internal unit according to the communication parameters transmitted by the external unit, and the display module displays the communication parameters , communication quality value, etc. The communication quality value provides a basis for setting the number and location of wireless repeaters.

The methods of communication quality inspection of internal and external units of the wireless multi-connection system and setting of wireless repeaters are as follows:

(1) Increase the signal power parameter of the communication protocol data of the internal and external units

In the communication protocol data sent from the internal unit to the external unit, the two data of signal transmission power TxPw and signal reception power RxPw are added, which can be expressed in mw or dBm.

(2) The parent node fills in the signal power data

When the wireless module of the internal unit sends data to the external unit, it fills in its own signal transmission power TxPw. When the parent node on the upper layer receives the internal machine data, it will detect the received signal power RxPw of the internal machine and fill it into the communication data, so far the TxPw and RxPw data have been filled in completely. Then continue to pass to the upper layer, but the TxPw and RxPw data remain unchanged until the external unit.

In Fig. 4, taking 12# as an example, TxPw is filled in by 12# itself, and RxPw is filled in by its parent node 5# according to the signal strength of 12# actually detected.

(3) Parameter transmission between the external machine and the wireless communication quality detection device

Assume that the current indoor and outdoor units have performed N rounds of wireless communication. During each round of communication, the signal transmission power TxPw of the internal unit is not fixed and changes at any time according to the site environment. In these N rounds of communication, there are a total of Ni times of communication. When the internal unit uses TxPwi power to send data, the parent node detects and sends the received power to the external unit as RxPwi.

The wireless communication quality detection device establishes wireless or wired communication with the external machine, and the external machine transmits RxPwi, TxPwi, Ni, N to the communication quality detection device.

(4) Signal transmission power weight setting

The wireless communication quality detection device may set the weight Qi corresponding to the signal transmission power TxPwi of the internal unit. The smaller the transmission power TxPwi, it means that it can meet the normal communication between the internal and external units at a very small power, there are fewer communication interference sources in the middle, and the communication quality is better, so the set weight Qi should be larger. Refer to Table 1.

(5) Calculate and display the communication quality of each internal unit

After the time period T has elapsed, the internal and external units have carried out N rounds of wireless communication. Take the internal machine j as an example (j is the number of the internal machine). In N rounds, when there are Ni times of transmission with TxPwi power, the parent node detects and sends the receiving power to the external machine as RxPwi, and the weight corresponding to the TxPwi power is Qi , then the communication quality calculation formula of this internal unit is:

The wireless communication quality detection device can calculate and display the communication quality of each internal unit according to the above formula.

(6) Determine whether to increase repeaters and the number and location of repeaters

Set the communication quality threshold M', and use it to measure whether the current communication status of the internal and external machines is normal. When Mj>M', it indicates that the communication between the internal unit and the external unit is normal, otherwise a wireless repeater needs to be added near the internal unit. The location of the wireless repeater will affect the degree of information enhancement, and it is necessary to select a suitable location to satisfy Mj>M′. If the communication quality is poor, multiple repeaters may be needed to maintain normal internal and external machine communication.

As shown in Figure 6, according to the communication quality M15≤M' of the internal unit 15# displayed by the wireless communication quality detection device, a repeater R1 is added near 15#. The parent node repeater R1 fills in RxPwi according to the actual detected signal strength of 15#, and reports layer by layer until the external machine. Every time the position of repeater R1 is moved, M15 must be recalculated. Choose a suitable location to maximize M15 and satisfy M15>M′. If one repeater cannot satisfy, add multiple repeaters until M15>M' is satisfied.

As shown in FIG. 7 , a communication quality detection device 100 is disclosed, including: a receiving module 101 that acquires a plurality of detection data of a detection object at different times; wherein, each detection data includes the detection The signal transmission power and signal reception power of the object at this moment; according to the size of the signal transmission power in each of the detection data, determine the matching module 102 of the influence weight of the detection data; according to the detection object at different times The analysis module 103 that analyzes the communication quality of the detection object based on the signal transmission power, signal reception power, and the influence weight.

In some demonstrative embodiments, the detection device further includes: a screening module 104 that finds detection data with consistent signal transmission power and signal reception power from a plurality of detection data as valid data.

In some illustrative embodiments, the parsing module is configured to determine the communication quality of the detection object according to the signal transmission power, the signal reception power, and the influence weight in the valid data.

In some illustrative embodiments, the parsing module is used to calculate the communication quality of the detected object according to the following formula:

Among them, M is the communication quality score, Ni is the number of valid data in the N detection data, Qi is the influence weight of the valid data, TxPwi is the signal transmission power in the valid data, and RxPwi is the signal receiving power in the valid data .

In some demonstrative embodiments, the detection device further includes: a comparison module 105 that compares the calculated communication quality score with a preset communication quality threshold; when the calculated communication quality score When it is less than the preset communication quality threshold, call the environment image of the detection object, and add at least one repeater in the environment image to simulate the communication quality of the detection object, and determine the placement quantity and Placement analysis module 106 .

As shown in FIG. 8 , an air-conditioning device is disclosed. As a device 200 for data transfer between a detection object and a processing object, it includes: a receiving module 201 that acquires detection data sent by the detection object at different times; wherein, Each of the detection data includes the signal transmission power of the detection object at that moment; when the detection data is received, the signal reception power of the detection object is detected, and it is determined that the detection object is transmitting The detecting module 202 of the received signal power at the moment of the detected data; sending the detected data including the signal transmitted power and the signal received power to the sending module 203 of the processing object.

The description of the above embodiments is only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1. A detection method of communication quality, characterized in that, for processing objects, comprising: Acquiring a plurality of detection data of the detection object at different times; each of the detection data includes the signal transmission power and signal reception power of the detection object at that time; determining the influence weight of the detection data according to the magnitude of the signal transmission power in each of the detection data; The communication quality of the detection object is analyzed according to the signal transmission power, the signal reception power, and the influence weight of the detection object at different times. 2. The detection method according to claim 1, wherein, before analyzing the communication quality of the detection object, further comprising: Finding detection data with the same signal transmission power and signal reception power as valid data from a plurality of detection data; The analyzing the communication quality of the detection object according to the signal transmission power, signal reception power, and the influence weight of the detection object at different times, specifically includes: The communication quality of the detected object is determined according to the signal transmission power, the signal reception power, and the influence weight in the effective data. 3. The detection method according to claim 2, characterized in that, determining the communication quality of the detection object according to the signal transmission power, signal reception power, and the influence weight in the effective data, specifically includes : Calculate the communication quality of the detected object according to the following formula: Among them, M is the communication quality score, Ni is the number of valid data in the N detection data, Qi is the influence weight of the valid data, TxPwi is the signal transmission power in the valid data, and RxPwi is the signal receiving power in the valid data . 4. The detection method according to any one of claims 1-3, characterized in that, after the determination of the communication quality of the detection object, further comprising: If the calculated communication quality score is less than a preset quality threshold, setting at least one repeater for the detection object to enhance its communication quality; By adjusting the positional relationship between the repeater and the detection object, and detecting the communication quality of the detection object after each adjustment; According to the test results, determine the number and location of repeaters. 5. A detection device for communication quality, characterized in that, comprising: A receiving module, configured to acquire a plurality of detection data of the detection object at different times; each detection data includes the signal transmission power and the signal reception power of the detection object at that time; A matching module, configured to determine the influence weight of the detection data according to the magnitude of the signal transmission power in each of the detection data; The analysis module is configured to analyze the communication quality of the detection object according to the signal transmission power, signal reception power, and the influence weight of the detection object at different times. 6. The detection device according to claim 5, further comprising: A screening module, configured to find detection data with the same signal transmission power and signal reception power as valid data from a plurality of detection data; The parsing module is configured to determine the communication quality of the detected object according to the signal transmission power, signal reception power, and the influence weight in the effective data. 7. The detection device according to claim 6, wherein the parsing module is configured to calculate the communication quality of the detection object according to the following formula: Among them, M is the communication quality score, Ni is the number of valid data in the N detection data, Qi is the influence weight of the valid data, TxPwi is the signal transmission power in the valid data, and RxPwi is the signal receiving power in the valid data . 8. The detection device according to any one of claims 5-7, further comprising: A comparison module, configured to compare the calculated communication quality score with a preset communication quality threshold; An analysis module, configured to call the environment image of the detection object when the calculated communication quality score is less than the preset communication quality threshold, and add at least one repeater to simulate the detection object in the environment image The quality of the communication, according to the test results to determine the number and placement of repeaters.