Low-power-consumption data transmission system and method for intelligent building data service

Abstract

The invention belongs to the technical field of data communication, and particularly relates to a low-power-consumption data transmission system and method for intelligent building data service. The low-power-consumption data transmission method for the intelligent building data service comprises the following steps that when signal transmission equipment sends uplink data to a monitoring center, whether the distance between the signal transmission equipment and the monitoring center exceeds a preset distance threshold value or not is judged, and if the distance between the signal transmission equipment and the monitoring center does not exceed the preset distance threshold value, the signal transmission equipment sends the uplink data to the monitoring center; if the distance exceeds the distance threshold value, acquiring azimuth information of each owner terminal by taking the signal transmission equipment as a center under the condition that the authority of the owner terminal is acquired, taking the owner terminal closest to the monitoring center within the distance threshold value as signal relay equipment, and sending uplink data to the signal relay equipment; and after the signal relay device receives the uplink data, the signal relay device is used as a signal transmission device to send the uplink data to the monitoring center. According to the scheme, the problem of high power consumption of data transmission in building data service is solved.

Description

Technical Field

[0001] The present invention belongs to the field of data communication technology, and specifically relates to a low-power data transmission system and method for intelligent building data services. Background Art

[0002] In large intelligent buildings, data needs to be transmitted over long distances between different floors and areas. As the transmission distance increases, the signal attenuates severely. In order to ensure the accuracy and integrity of data transmission, it is usually necessary to increase the signal transmission power. However, increasing the signal transmission power (high power consumption) will cause the transmission equipment to generate too much heat. When the heat dissipation conditions are not good, the internal temperature of the equipment will rise, which can easily cause the performance of electronic components to decline, short circuits and other faults, affecting the stability and reliability of data transmission.

[0003] In this regard, in order to ensure good network signal coverage in every corner of the building, especially in areas where signals are easily blocked, such as basements and elevator shafts, more signal relay devices are usually deployed in the building. Although this method increases the stability of signal transmission, it greatly increases the operating cost of the system.

[0004] Especially in the process of monitoring data transmission in some community buildings, the above problems are often more prominent. The cameras used to shoot basements, elevator shafts or health trails are far away from the monitoring center. If the signal transmission power is not increased, relay equipment will be needed to transmit monitoring data. However, whether adding relay equipment or signal transmission power, it will increase the data transmission cost extremely high, which is unacceptable to the owners in the community. Summary of the invention

[0005] The purpose of this solution is to provide a low-power data transmission system and method for smart building data services to solve the problem of high power consumption of data transmission in building data services.

[0006] In order to achieve the above object, the present invention provides a low-power data transmission method for smart building data service, comprising the following steps: When the signal transmission device sends uplink data to the monitoring center, it is determined whether the distance between the signal transmission device and the monitoring center exceeds a preset distance threshold. If the distance threshold is not exceeded, the signal transmission device sends the uplink data to the monitoring center. If the distance threshold is exceeded, the location information of each owner's terminal is obtained with the signal transmission device as the center, and the owner's terminal closest to the monitoring center within the distance threshold is used as a signal relay device, and uplink data is sent to the signal relay; After receiving the uplink data, the signal relay device acts as a signal transmission device to send the uplink data to the monitoring center.

[0007] And, a low power consumption data transmission system for smart building data service using the low power consumption data transmission method for smart building data service.

[0008] The principle and technical effect of this scheme are: in the case of obtaining the owner's authority, this scheme can effectively extend the distance of signal transmission by using the appropriate owner terminal as a signal relay device, so that the data that could not reach the monitoring center due to the long distance can be successfully transmitted, thereby expanding the data transmission coverage of the entire system, ensuring that in a wider area, the data collected by the signal transmission equipment can be sent to the monitoring center in a timely and accurate manner. In addition, by using the owner terminal as a signal relay device, there is no need to build additional large-scale hardware facilities such as special relay stations, making full use of the existing owner terminal resources and reducing the investment cost of hardware equipment. At the same time, it also avoids the idleness and waste of resources that may be caused by the construction of too many fixed relay facilities, improves the resource utilization efficiency of the entire system, and has good economy and practicality. Furthermore, the method of dynamically selecting the signal relay device according to the actual distance and the distribution of the owner's terminal can select the transmission path with the shortest transmission distance and the least relay devices in the current environment as much as possible, thereby ensuring the transmission efficiency of the uplink data. Finally, this method of dynamically selecting the signal relay device in a distributed manner increases the difficulty and cost of intercepting and stealing the uplink data, thereby protecting the security of the uplink data during transmission.

[0009] In summary, this solution solves the problem of high power consumption of data transmission in building data services.

[0010] Furthermore, when the signal transmission device obtains the location information of the owner terminal, it determines the transmission time of the uplink data according to the transmission speed of the uplink data and the size of the uplink data, and calculates the time when the distance to the owner terminal reaches the distance threshold according to the moving speed and location information of the owner terminal as the separation time, and the owner terminal whose separation time is not less than the transmission time and whose difference between the separation time and the transmission time is the smallest is used as the signal relay device.

[0011] By accurately calculating and selecting the appropriate owner terminal as the signal relay device, we can ensure to the greatest extent that during the uplink data transmission process, the signal relay device remains within the effective distance range for a sufficiently long time, thereby reducing the possibility of signal interruption due to excessive distance or device movement, making data transmission more stable and reliable.

[0012] Furthermore, the signal transmission device adjusts the number of signal relay devices according to the current transmission speed of the uplink data.

[0013] Regardless of how the external environment changes, such as building obstructions, weather changes, etc., the signal transmission equipment can adjust the number of signal relay devices in time according to the real-time uplink data transmission speed. In a complex and changing environment, this measure can automatically find the most suitable transmission configuration, ensure stable and reliable data transmission, and reduce the risk of signal interruption and data loss.

[0014] Furthermore, the signal transmission device is also used to obtain the device model of the owner's terminal and select the signal relay device according to the device model.

[0015] Different models of owner terminals have different signal receiving, processing and forwarding capabilities. By understanding the device model, the signal transmission device can select those owner terminals with stronger signal processing capabilities and more suitable for current transmission needs as signal relay devices.

[0016] Furthermore, after the signal transmission device obtains the location information of the owner's terminal, it selects multiple signal relay devices, splits the uplink data according to the number of signal relay devices, and sends the uplink data to each signal relay device respectively.

[0017] By splitting the uplink data and transmitting it through multiple signal relay devices at the same time, parallel data transmission is achieved. This is like transporting goods on multiple roads at the same time. Compared with single-channel transmission, it greatly speeds up data transmission and reduces the overall transmission time. This is especially true when processing large amounts of uplink data. Selecting multiple signal relay devices and splitting the data for transmission is equivalent to opening up multiple paths for data transmission. Moreover, even if one or several signal relay devices fail, are interfered with, or are out of effective range, other normal signal relay devices can continue to transmit data, increasing the redundancy of data transmission, reducing the risk of data loss, and ensuring the reliability of transmission.

[0018] Furthermore, the signal transmission device obtains the account information of the owner's terminal, queries the owner's address information through the account information, combines the address information with the moving speed and direction of the owner's terminal to infer the movement trend of the owner's terminal, and selects the owner's terminal whose movement trend is closer to the monitoring center as the signal relay device.

[0019] The owner's movement trend (such as going home or leaving home) can be inferred based on the owner's address information, the moving speed and direction of the owner's terminal. If the owner passes by the monitoring center during his movement trend and sends uplink data to the owner's terminal, as the owner moves, the owner's terminal will gradually enter the data transmission range of the monitoring center and get closer and closer to the monitoring center. The transmission distance (of uplink data) is constantly shortened, the signal quality is constantly improved, the uncertainty factors in the signal transmission process are reduced, and the risk of transmission interruption is also reduced.

[0020] Furthermore, the signal transmission device counts the amount of data being transmitted by the owner terminal, and if the amount exceeds a preset threshold, the owner terminal is ignored.

[0021] By checking the amount of data being transmitted by the owner terminal, the owner terminal with a heavy transmission load can be excluded. The owner terminal with a heavy transmission load may have problems such as unstable transmission efficiency and data loss. Selecting such an owner terminal as a signal relay device may also cause lag problems to the owner terminal. Excluding the owner terminal with a heavy transmission load can prevent data from being transmitted in an unstable situation and avoid causing a bad experience to the owner terminal.

[0022] Furthermore, after receiving the data from the signal transmission device, the monitoring center scores the transmission speed, transmitted data size and data integrity of each signal relay device on the transmission link, and associates the scoring result with the account information of the signal relay device; when the signal transmission device obtains the account information of the owner's terminal, it obtains the scoring result based on the account information and selects the owner's terminal with a higher scoring result as the signal relay device.

[0023] The signal transmission equipment selects the owner terminal with higher score as relay according to the score, which can ensure that the data is transmitted along the path with better transmission performance. During multiple data transmission processes, the system will automatically select those signal relay devices that always perform well, and give priority to using them to build transmission links, reducing data transmission problems caused by selecting relay devices with poor transmission performance, such as transmission interruption, data error or excessive delay, etc., and ensuring the stable and efficient transmission of data from the source to the monitoring center. At the same time, the signal relay device is selected according to the score to avoid the waste of resources and local network congestion caused by all owner terminals being used as relays indiscriminately. The system will give priority to assigning data transmission tasks to those owner terminals with high scores, strong transmission capabilities and relatively low current loads, so as to achieve reasonable allocation of resources and balance of network loads. This not only improves the resource utilization of each signal relay device and extends the service life of the equipment, but also prevents failures due to excessive use of individual equipment, further improving the overall stability and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A flow chart of a low power data transmission method for smart building data services. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the concept and technical effects of the present invention in combination with the embodiments, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention: like Figure 1 As shown, a low-power data transmission method for smart building data service includes the following steps: When the signal transmission device sends uplink data to the monitoring center, it determines whether the distance between the signal transmission device and the monitoring center exceeds the preset distance threshold (generally 10m, which can be adjusted according to the stable transmission range of the signal transmission device). If it does not exceed the distance threshold, the signal transmission device sends uplink data to the monitoring center. If the distance threshold is exceeded, the location information of each owner's terminal is obtained with the signal transmission device as the center, and the owner's terminal closest to the monitoring center within the distance threshold is used as a signal relay device, and uplink data is sent to the signal relay; After receiving the uplink data, the signal relay device acts as a signal transmission device to send the uplink data to the monitoring center.

[0026] Among them, when the signal transmission equipment obtains the orientation information of the owner terminal, it determines the transmission time of the uplink data according to the transmission speed of the uplink data and the size of the uplink data, and calculates the time when the distance to the owner terminal reaches the distance threshold according to the moving speed and orientation information of the owner terminal as the separation time, and the owner terminal whose separation time is not less than the transmission time and whose difference between the separation time and the transmission time is the smallest is used as the signal relay equipment.

[0027] Among them, the signal transmission device adjusts the number of signal relay devices according to the current transmission speed of uplink data.

[0028] Among them, the signal transmission equipment is also used to obtain the device model of the owner's terminal and select the signal relay equipment according to the device model.

[0029] Among them, after the signal transmission device obtains the location information of the owner's terminal, it selects multiple signal relay devices, splits the uplink data according to the number of signal relay devices, and sends them to each signal relay device respectively.

[0030] Among them, the signal transmission device obtains the account information of the owner's terminal, queries the owner's address information through the account information, combines the address information with the moving speed and direction of the owner's terminal to infer the movement trend of the owner's terminal, and selects the owner's terminal whose movement trend is closer to the monitoring center as the signal relay device.

[0031] The signal transmission device counts the amount of data being transmitted by the owner terminal. If the amount exceeds a preset threshold (usually 3, which can be adjusted according to the load capacity of the owner terminal), the owner terminal is ignored.

[0032] Among them, after the monitoring center receives the data from the signal transmission device, it scores the transmission speed, transmitted data size and data integrity of each signal relay device on the transmission link, and associates the scoring result with the account information of the signal relay device; when the signal transmission device obtains the account information of the owner's terminal, it obtains the scoring result based on the account information and selects the owner's terminal with a higher scoring result as the signal relay device.

[0033] The present solution also includes a low power data transmission system for smart building data services using a low power data transmission method for smart building data services.

[0034] When implementing A low-power data transmission system for intelligent building data services using a low-power data transmission method for intelligent building data services is installed in 5 buildings in a community. Monitoring and acquisition devices (cameras) are installed at various locations in the community buildings. These monitoring and acquisition devices also serve as signal transmission devices to send the collected monitoring audio data to the monitoring center. The monitoring center is set in the center of the community (near Building 1), and Buildings 2-4 are far away from Building 1. Building 5 is the farthest from the monitoring center (more than 100m away from the monitoring center).

[0035] Take a camera (signal transmission device) in 5 buildings as an example. When it is ready to send uplink audio data to the monitoring center, it will first determine the distance between itself and the monitoring center. It is known that the preset distance threshold is 10m, and the distance between the camera and the monitoring center exceeds 100m, far exceeding the threshold. Therefore, it starts to obtain the owner terminal authority and scan the location information of the surrounding owner terminals. At this time, there are 5 owner terminals within its signal coverage. The camera calculates the transmission time to be about 4 seconds based on the current audio data transmission speed (such as 50kb / s) and data size (200kb). At the same time, based on the moving speeds of these 5 owner terminals (respectively 0.5m / s, 0.3m / s, 0.6m / s, 0.4m / s, 0.2m / s) and location information, the time when each owner terminal reaches the distance threshold from the camera is calculated. After screening, it was found that the smartphone of one of the owners was away for 5 seconds, which met the conditions that the away time was not less than the transmission time and the difference was the smallest. Therefore, the smartphone was used as a signal relay device and uplink audio data was sent to it.

[0036] The camera will also obtain the device model information of the owner's terminal. For example, there is a new model of smartphone, which has a chip specially designed for signal enhancement and an optimized antenna design, which is more conducive to data transmission. The camera will give priority to the owner's terminal with better device models as a signal relay device.

[0037] In addition, according to the current audio data transmission speed, if the transmission speed is found to be slow (such as less than 30kb / s), the camera will select multiple signal relay devices. For example, it will select three owner terminals as signal relay devices, split the audio data according to certain rules (such as according to the audio frequency band), and send them to the three owner terminals respectively. These owner terminals will then forward the data to the monitoring center in turn to improve transmission efficiency.

[0038] The camera will count the amount of data being transmitted by the owner's terminal. The preset threshold is 3. If the amount of data being transmitted by an owner's terminal exceeds 3 (perhaps because the owner is downloading a large number of files or transmitting video streams), the camera will temporarily ignore this owner's terminal to prevent it from affecting the transmission of monitoring audio data, and give priority to ensuring the stable transmission of community security monitoring data.

[0039] For some cameras in a building, since they are relatively close to the monitoring center, when judging the distance, it is found that the distance threshold of 10m is not exceeded. For example, a camera in a corner of a building is 8m away from the monitoring center. The camera directly sends the collected audio data to the monitoring center without the need for relaying through the owner's terminal, which reduces the links and potential risks of data transmission and also reduces power consumption.

[0040] After receiving the data from each camera (signal transmission device), the monitoring center will score the transmission performance of each signal relay device on the transmission link. For example, for an owner terminal that successfully and quickly (transmission speed reaches 80kb / s) and completely transmits a large amount of audio data (such as 500kb), the monitoring center will give a higher score and associate the score result with the account information of the owner terminal. When the camera needs to select a signal relay device again, it will obtain the account information of the owner terminal, and obtain the previous score results based on the account information, and give priority to the owner terminal with a higher score as the signal relay device. This forms a virtuous cycle, continuously optimizing the selection of signal relay devices and improving the reliability and stability of the entire community monitoring data transmission.

[0041] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A low-power data transmission method for smart building data services, characterized in that: The following steps are involved: When the signal transmission device sends uplink data to the monitoring center, it is determined whether the distance between the signal transmission device and the monitoring center exceeds a preset distance threshold. If the distance threshold is not exceeded, the signal transmission device sends the uplink data to the monitoring center. If the distance threshold is exceeded, the location information of each owner's terminal is obtained with the signal transmission device as the center, and the owner's terminal closest to the monitoring center within the distance threshold is used as a signal relay device, and uplink data is sent to the signal relay; After receiving the uplink data, the signal relay device acts as a signal transmission device to send the uplink data to the monitoring center.

2. The low-power data transmission method for intelligent building data service according to claim 1, characterized in that: When the signal transmission device obtains the location information of the owner terminal, it determines the transmission time of the uplink data according to the transmission speed of the uplink data and the size of the uplink data, and calculates the time when the distance to the owner terminal reaches the distance threshold according to the moving speed and location information of the owner terminal as the separation time. The owner terminal whose separation time is not less than the transmission time and whose difference between the separation time and the transmission time is the smallest is used as the signal relay device.

3. The low-power data transmission method for intelligent building data service according to claim 2, characterized in that: The signal transmission device adjusts the number of signal relay devices according to the current transmission speed of the uplink data.

4. The low-power data transmission method for intelligent building data service according to claim 3, characterized in that: The signal transmission device is also used to obtain the device model of the owner's terminal and select the signal relay device according to the device model.

5. The low-power data transmission method for intelligent building data service according to claim 4, characterized in that: After the signal transmission device obtains the location information of the owner's terminal, it selects multiple signal relay devices, splits the uplink data according to the number of signal relay devices, and sends them to each signal relay device respectively.

6. The low-power data transmission method for intelligent building data service according to claim 5, characterized in that: The signal transmission device obtains the account information of the owner's terminal, queries the owner's address information through the account information, combines the address information with the moving speed and direction of the owner's terminal to infer the movement trend of the owner's terminal, and selects the owner's terminal whose movement trend is closer to the monitoring center as the signal relay device.

7. The low-power data transmission method for intelligent building data service according to claim 6, characterized in that: The signal transmission device counts the amount of data being transmitted by the owner terminal. If the amount exceeds a preset threshold, the owner terminal is ignored.

8. The low-power data transmission method for intelligent building data service according to claim 7, characterized in that: After the monitoring center receives the data from the signal transmission device, it scores the transmission speed, data size and data integrity of each signal relay device on the transmission link, and associates the scoring result with the account information of the signal relay device; when the signal transmission device obtains the account information of the owner's terminal, it obtains the scoring result based on the account information and selects the owner's terminal with a higher scoring result as the signal relay device.

9. A low-power data transmission system for smart building data services, characterized in that: A low-power data transmission method for smart building data services as described in any one of claims 1 to 8 is used.

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