CN113242537B - Infrared image transmission method based on Bluetooth intelligent networking - Google Patents

Infrared image transmission method based on Bluetooth intelligent networking Download PDF

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CN113242537B
CN113242537B CN202110482874.5A CN202110482874A CN113242537B CN 113242537 B CN113242537 B CN 113242537B CN 202110482874 A CN202110482874 A CN 202110482874A CN 113242537 B CN113242537 B CN 113242537B
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infrared image
image sensor
bluetooth
storage area
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CN113242537A (en
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李响
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Terminus Technology Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

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Abstract

The invention discloses an infrared image transmission method based on Bluetooth intelligent networking, which relates to the technical field of communication and comprises the steps that each infrared image sensor Bluetooth device in the coverage range of a Bluetooth master device of a control center sends a first connectable broadcast message to the Bluetooth master device; the Bluetooth main equipment judges according to the first connectable broadcast message, when the number of the infrared image sensor Bluetooth equipment to be connected does not exceed the maximum value of the preset connectable number, the control center sets a main storage area with the preset block number connected end to end, and creates and sends the connection sequence and the time length table of each infrared image sensor Bluetooth equipment; each infrared image sensor Bluetooth device is provided with a preset number of slave storage areas which are connected end to end and stores infrared image data in a first round; and after the storage is full, infrared image data transmission is carried out between the infrared image sensor Bluetooth equipment and the control center Bluetooth main equipment. The invention realizes intelligent dynamic distribution and continuous transmission of infrared image data of the Bluetooth master-slave equipment.

Description

Infrared image transmission method based on Bluetooth intelligent networking
Technical Field
The invention relates to the technical field of communication, in particular to an infrared image transmission method based on Bluetooth intelligent networking.
Background
With the rise of the internet of things industry, intelligent monitoring equipment gradually enters the lives of people, an infrared image sensor is the equipment, and how to establish networking connection of the intelligent monitoring equipment becomes a popular technical point at present.
The Bluetooth technology is a short-distance wireless communication technology, and an intelligent monitoring device networking established by utilizing the Bluetooth technology can effectively simplify the communication between intelligent monitoring devices, thereby improving the data transmission efficiency. Some bluetooth networking technologies, for example, chinese patent with application number 200910000640.1, disclose a method, software program and server for implementing networking of multiple bluetooth devices through a bluetooth server, manage multiple bluetooth adapters by building a bluetooth server, establish communication connection based on bluetooth Sockets protocol, and implement simultaneous interactive data transmission between a server host and multiple bluetooth devices and between multiple bluetooth devices. However, such networking increases the complexity of the system.
Some bluetooth networking methods are connected with all intelligent nodes through special control nodes to perform networking, and the mode has limitations on connection distance and the number of connection nodes and is low in communication efficiency.
Disclosure of Invention
Therefore, in order to overcome the above drawbacks, embodiments of the present invention provide an infrared image transmission method based on bluetooth intelligent networking.
Therefore, the infrared image transmission method based on the Bluetooth intelligent networking comprises the following steps:
each infrared image sensor Bluetooth device in the coverage range of the control center Bluetooth master device sends a first connectable broadcast message to the control center Bluetooth master device;
the control center Bluetooth master device receives the first connectable broadcast message, and the control center obtains the number n of the infrared image sensor Bluetooth devices to be connected according to the obtained first connectable broadcast message1；
The control center judges the number n of the infrared image sensor Bluetooth devices to be connected1Whether the maximum value n of the preset connectable number is exceededmax；
When said number n is1Does not exceed a preset maximum value n of the number of connectable connectionsmaxWhen the control center is used, the control center sets a preset number of main storage areas which are connected end to end, marks one of any two continuous blocks of the main storage areas as a main storage area, marks the other block as a main reading area, and establishes a connection sequence and time length table of each infrared image sensor Bluetooth device, and allocates the sequence and time length of connection with the control center Bluetooth main device for each infrared image sensor Bluetooth device;
the control center Bluetooth master device is respectively connected with each infrared image sensor Bluetooth device, and sends the connection sequence and the duration table and the size M of each main storage area to each infrared image sensor Bluetooth device;
each infrared image sensor Bluetooth device receives the connection sequence, the duration table and the size M, the infrared image sensor sets preset block numbers of slave storage areas which are connected end to end according to the obtained size M, marks one of any two continuous blocks of the slave storage areas as a slave storage area, marks the other block as a slave reading area, and stores the acquired infrared image data into the slave storage area in an initial round;
each infrared image sensor respectively judges whether the slave storage area is full;
and when the slave storage area is full, the infrared image data transmission is carried out between the infrared image sensor Bluetooth device and the control center Bluetooth master device.
Preferably, the step of first storing the acquired infrared image data into the slave storage area comprises:
when one frame of infrared image data is collected, storing the collected one frame of infrared image data into the slave storage area;
the data in each block from the storage area is moved to the next block from the storage area in one direction, and the slave storage area is emptied.
Preferably, when the slave storage area is full, the step of performing infrared image data transmission between the infrared image sensor bluetooth device and the control center bluetooth master device comprises:
when the slave storage area is full, the infrared image sensor Bluetooth equipment corresponding to the full infrared image sensor sends a data transmission request message to the control center Bluetooth master equipment;
the control center Bluetooth main equipment receives the data transmission request message, and the control center obtains the number of the infrared image sensors which are stored in the storage area according to the obtained number of the data transmission request message;
the control center judges whether the number of the infrared image sensors which are fully stored in the secondary storage area is equal to n1；
When being equal to n1When the infrared image sensor Bluetooth equipment is started, the control center Bluetooth master equipment sends synchronous receiving and sending time slots to each infrared image sensor Bluetooth equipment;
each infrared image sensor Bluetooth device receives the synchronous receiving and sending time slot and sends infrared image data according to the synchronous receiving and sending time slot, and the infrared image sensor stores the acquired infrared image data into the slave storage area in turn according to the acquired synchronous receiving and sending time slot;
the control center Bluetooth main equipment receives the infrared image data sent by each infrared image sensor Bluetooth equipment according to the synchronous receiving and sending time slot, and the control center stores the obtained infrared image data into a main storage area.
Preferably, the method further comprises the following steps:
when the number n of the first connectable broadcast messages is1Exceeding a preset maximum number n of connectionsmaxThen, the control center selects n with the strongest signal intensity according to the signal intensity of the first connectable broadcast messagemaxSetting the corresponding infrared image sensor Bluetooth device as the first-stage infrared image sensor Bluetooth device, and the rest n1-nmaxThe infrared image sensor Bluetooth devices are set as second-level infrared image sensor Bluetooth devices, and the second-level infrared image sensor Bluetooth devices adjacent to the Bluetooth addresses are divided into a group, and the group is divided into k groups;
the control center sets a preset number of first-level main storage areas in end-to-end connection, marks one of any two continuous first-level main storage areas as a first-level main storage area, marks the other one as a first-level main reading area, and creates a multi-level connection sequence and a time length table of all first-level infrared image sensor Bluetooth devices and second-level infrared image sensor Bluetooth devices, wherein the size of each first-level main storage area is M;
the control center Bluetooth master device is respectively connected with each first-stage infrared image sensor Bluetooth device, and sends the multistage connection sequence and the schedule and the size M of each first-stage main storage area to each first-stage infrared image sensor Bluetooth device; the k first-stage infrared image sensor Bluetooth devices are respectively connected with second-stage infrared image sensor Bluetooth devices in the group, and the multistage connection sequence and time length table, the size M of each first-stage main storage area and the size N of each first-stage slave storage area are sent to each second-stage infrared image sensor Bluetooth device in the group;
each first-stage infrared image sensor Bluetooth device receives the multi-stage connection sequence, the time length table and the size M, the infrared image sensor sets a preset number of first-stage slave storage areas which are connected end to end according to the obtained size M, one of any two continuous blocks of the first-stage slave storage areas is marked as a first-stage slave storage area, the other block is a first-stage slave reading area, the size of each first-stage slave storage area is N, and collected infrared image data are stored in the first-stage slave storage area in a first round; each second-level infrared image sensor Bluetooth device receives M, N the multi-level connection sequence, the schedule and the size, the infrared image sensor sets a preset number of end-to-end second-level slave storage areas according to the obtained size M, N and marks one of any two continuous blocks of the second-level slave storage areas as a second-level slave storage area, the other block is a second-level slave reading area, and collected infrared image data are stored in the second-level slave storage area in a first round;
the infrared image sensor of each first-stage infrared image sensor Bluetooth device respectively judges whether the first-stage slave storage area is full, and the infrared image sensor of each second-stage infrared image sensor Bluetooth device respectively judges whether the second-stage slave storage area is full;
when the first-level slave storage area is full, the first-level infrared image sensor Bluetooth equipment corresponding to the full infrared image sensor sends a first data transmission request message to the control center Bluetooth master equipment; when the second-level slave storage area is full, the second-level infrared image sensor Bluetooth device corresponding to the full-stored infrared image sensor sends a second data transmission request message to the first-level infrared image sensor Bluetooth device in the group;
when the first-level infrared image sensor Bluetooth device receives the second data transmission request message, sending a third data transmission request message to the control center Bluetooth master device;
the control center Bluetooth master device receives the first data transmission request message and the third data transmission request message, and the control center obtains the number of the infrared image sensors which are full of the first-level slave storage area and the second-level slave storage area according to the obtained number of the first data transmission request message and the third data transmission request message;
the control center judges whether the number of the filled infrared image sensors is equal to or notAt n1；
When being equal to n1And then, infrared image data transmission is carried out between the first-stage infrared image sensor Bluetooth device, the second-stage infrared image sensor Bluetooth device and the control center Bluetooth master device.
Preferably, said is equal to n1And then, the step of transmitting infrared image data between the first-level infrared image sensor Bluetooth device, the second-level infrared image sensor Bluetooth device and the control center Bluetooth master device comprises the following steps:
the control center Bluetooth master device sends multistage synchronous receiving and sending time slots to each first-stage infrared image sensor Bluetooth device; the multistage synchronous transceiving time slots comprise a first synchronous transmitting time slot, a first synchronous receiving time slot, a second synchronous transmitting time slot and a second synchronous receiving time slot which are connected in sequence;
each first-stage infrared image sensor Bluetooth device receives the multistage synchronous transceiving time slot, wherein the k first-stage infrared image sensor Bluetooth devices respectively send the multistage synchronous transceiving time slots to each second-stage infrared image sensor Bluetooth device in the group; receiving and sending infrared image data by the k first-stage infrared image sensor Bluetooth devices according to the multistage synchronous transceiving time slots, and remaining nmaxThe k first-stage infrared image sensor Bluetooth devices transmit infrared image data, and an infrared image sensor corresponding to each first-stage infrared image sensor Bluetooth device stores acquired infrared image data in the first-stage slave storage area in a secondary round according to the acquired multistage synchronous transceiving time slots;
each second-stage infrared image sensor Bluetooth device receives the multistage synchronous receiving and sending time slots and sends infrared image data according to the multistage synchronous receiving and sending time slots, and the infrared image sensor stores the acquired infrared image data into the second-stage slave storage area in turn according to the acquired multistage synchronous receiving and sending time slots;
the control center Bluetooth master device receives the infrared image data sent by each first-stage infrared image sensor Bluetooth device according to the multistage synchronous receiving and sending time slots, and the control center stores the obtained infrared image data into a first-stage main storage area.
The technical scheme of the embodiment of the invention has the following advantages:
according to the infrared image transmission method based on Bluetooth intelligent networking provided by the embodiment of the invention, the networking layer number and the master-slave equipment of the infrared image sensor Bluetooth equipment are intelligently and dynamically distributed according to the maximum value of the preset connectable number, the infrared image sensor Bluetooth equipment is divided into one layer of Bluetooth sub-equipment when the number of the infrared image sensor Bluetooth equipment is less, and is divided into a plurality of layers of Bluetooth sub-equipment when the number of the infrared image sensor Bluetooth equipment is more, so that the networking capacity is improved, the transmission link is shortened due to the layered arrangement, and the communication efficiency is also improved. The continuous transmission of the infrared image data is realized by arranging the storage areas which are connected end to end and matching with the synchronous transceiving time slot.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a specific example of an infrared image transmission method based on bluetooth intelligent networking in an embodiment of the present invention;
fig. 2 is a flowchart of another specific example of an infrared image transmission method based on bluetooth smart networking in an embodiment of the present invention;
fig. 3 is a flowchart of another specific example of an infrared image transmission method based on bluetooth smart networking in an embodiment of the present invention;
fig. 4 is a schematic diagram of a specific example of a bluetooth intelligent networking structure in the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In describing the present invention, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and/or "comprising," when used in this specification, are intended to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; the two elements can be directly connected, indirectly connected through an intermediate medium, or communicated with each other inside; either a wireless or a wired connection. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is understood that the term control center refers to a hardware device that includes a memory and a processor. The memory is configured as a memory module and the processor is specifically configured to execute the processes stored in the memory module to thereby execute one or more processes.
Furthermore, certain drawings in this specification are flow charts illustrating methods. It will be understood that each block of the flowchart illustrations, and combinations of blocks in the flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be loaded onto a computer or other programmable apparatus to produce a machine, such that the instructions which execute on the computer or other programmable apparatus create means for implementing the functions specified in the flowchart block or blocks. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart block or blocks. The computer program instructions may also be loaded onto a computer or other programmable apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks.
Accordingly, blocks of the flowchart illustrations support combinations of means for performing the specified functions and combinations of steps for performing the specified functions. It will also be understood that each block of the flowchart illustrations, and combinations of blocks in the flowchart illustrations, can be implemented by special purpose hardware-based computer systems which perform the specified functions or steps, or combinations of special purpose hardware and computer instructions.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Examples
The embodiment provides an infrared image transmission method based on bluetooth intelligent networking, as shown in fig. 1, including the following steps:
step 1, each infrared image sensor Bluetooth device in the coverage range of the control center Bluetooth master device sends a first connectable broadcast message to the control center Bluetooth master device. The first connectable broadcast message includes a bluetooth address, and the bluetooth address corresponds to the infrared image sensor bluetooth device one to one and reflects an actual location.
Step 2, the control center Bluetooth master device receives the first connectable broadcast message, and the control center obtains the first connectable broadcast message according to the first connectable broadcast messageThe first connectable broadcast message obtains the number n of infrared image sensor bluetooth devices to be connected1(ii) a Typically, an infrared image sensor bluetooth device transmits a first connectible broadcast message in a one-to-one relationship.
Step 3, the control center judges the number n of the infrared image sensor Bluetooth devices to be connected1Whether the maximum value n of the preset connectable number is exceededmax(ii) a Presetting the maximum value n of the number of connectable connectionsmaxThe maximum number of the Bluetooth slave devices which can be simultaneously connected with the Bluetooth master device of the control center to carry out data transmission.
Step 4, when the number n is equal to1Does not exceed a preset maximum value n of the number of connectable connectionsmaxThe control center sets a preset number of main storage areas connected end to end and marks one of any two continuous blocks of the main storage areas as a main storage area, the other one is a main reading area, the size of each main storage area is M, a connection sequence and time length table of each infrared image sensor Bluetooth device is created, the sequence and time length of connection with the control center Bluetooth main device are distributed for each infrared image sensor Bluetooth device, the sequence and time length can be set according to actual conditions, and preferably, the time length of connection between each infrared image sensor and the control center Bluetooth main device is equal.
Step 5, the control center Bluetooth master device is respectively connected with each infrared image sensor Bluetooth device, and sends the connection sequence and the duration table and the size M of each main storage area to each infrared image sensor Bluetooth device; and each infrared image sensor Bluetooth device is used as a Bluetooth slave device to perform data transmission with the control center Bluetooth master device. When the number of the infrared image sensor Bluetooth devices is small, the infrared image sensor Bluetooth devices are divided into a layer of Bluetooth sub-devices.
And 6, each infrared image sensor Bluetooth device receives the connection sequence, the time length table and the size M, the infrared image sensor sets preset block numbers of slave storage areas which are connected end to end according to the obtained size M, one of any two continuous blocks of the slave storage areas is marked as a slave storage area, the other block is a slave reading area, the size of each slave storage area is smaller than or equal to that of each master storage area, and collected infrared image data are stored in the slave storage areas in an initial round.
Preferably, the step of first storing the acquired infrared image data into the slave storage area comprises:
step 6-1, storing the acquired frame of infrared image data into the slave storage area when acquiring a frame of infrared image data; the area occupied by one frame of infrared image data is smaller than the slave storage area, that is, smaller than each master storage area.
Step 6-2, each piece of data in the storage area is moved to the next piece of slave storage area (the next slave storage area from the storage area is not the slave reading area), and the slave storage area is moved to be empty, so that the next frame of infrared image data can be stored; for example, each block is connected from the storage area to form a circle, after data is stored from the storage area, each block moves one area clockwise or counterclockwise from the data in the storage area, and moves the data in the storage area to the next adjacent slave storage area, so that the slave storage area is emptied.
Step 7, each infrared image sensor respectively judges whether the slave storage area is full; when the slave storage area is not full, the infrared image data is continuously stored in the slave storage area while maintaining the current status. When data is stored in the slave readout region, it indicates that the slave storage region is full.
And 8, when the slave storage area is full, carrying out infrared image data transmission between the infrared image sensor Bluetooth device and the control center Bluetooth master device.
Preferably, as shown in fig. 2, step 8 comprises:
and 8-1, when the slave storage area is full, the infrared image sensor Bluetooth device corresponding to the full infrared image sensor sends a data transmission request message to the control center Bluetooth master device.
And 8-2, the control center Bluetooth main equipment receives the data transmission request message, and the control center obtains the number of the infrared image sensors which are fully stored in the secondary storage area according to the obtained number of the data transmission request message.
Step 8-3, the control center judges whether the number of the infrared image sensors which are fully stored in the secondary storage area is equal to n1(ii) a When is not equal to n1In the case of a new infrared image sensor, the storage area is not filled with the new infrared image sensor.
Step 8-4, when n is equal to n1And when the infrared image sensor Bluetooth equipment is in use, the control center Bluetooth master equipment sends synchronous receiving and sending time slots to each infrared image sensor Bluetooth equipment. The synchronous transceiving time slots comprise synchronous transmitting time slots and synchronous receiving time slots which are connected in sequence. Preferably, the synchronous transmission time slot and the synchronous reception time slot have the same duration. The time length of each time slot is greater than the time length which is distributed for each infrared image sensor Bluetooth device in the connection sequence and the time length table and is connected with the control center Bluetooth main device.
And 8-5, each infrared image sensor Bluetooth device receives the synchronous receiving and sending time slot and sends infrared image data according to the synchronous receiving and sending time slot, and the infrared image sensor stores the acquired infrared image data into the slave storage area in turn according to the acquired synchronous receiving and sending time slot.
Preferably, the step of sending the infrared image data according to the synchronous transceiving time slot, and the step of storing the acquired infrared image data into the slave storage area by the infrared image sensor according to the acquired synchronous transceiving time slot comprises:
and 8-5-1, sequentially sending one frame of infrared image data in the slave reading area to the control center Bluetooth master device by all the infrared image sensor Bluetooth devices in each synchronous receiving time slot according to the connection sequence and the sequence in the time length table, emptying the slave reading area, storing the acquired one frame of infrared image data in the slave storage area by the corresponding infrared image sensor in the subsequent synchronous sending time slot, moving each piece of data in the slave storage area to the next slave storage area in one direction, emptying the slave storage area, and moving new data in the slave reading area.
And 8-6, the Bluetooth master device of the control center receives the infrared image data sent by each infrared image sensor Bluetooth device according to the synchronous receiving and sending time slot, and the control center stores the obtained infrared image data into a main storage area.
Preferably, steps 8-6 include:
and 8-6-1, the control center Bluetooth main device receives a frame of infrared image data sent by an infrared image sensor Bluetooth device in each synchronous receiving time slot according to the connection sequence and the sequence in the time length table, stores the acquired frame of infrared image data in a main storage area, and then moves the data in each main storage area to the next main storage area in one direction to empty the main storage area, so that the next acquired frame of infrared image data can be stored. And after the main storage area is full, outputting one frame of infrared image data in the main reading area to the external connection equipment at each synchronous sending time slot, and emptying the main reading area so as to store the next frame of infrared image data.
Preferably, as shown in fig. 3, the infrared image transmission method based on bluetooth smart networking further includes the following steps:
step 9, when the number n of the first connectable broadcast messages1Exceeding a preset maximum number n of connectionsmaxThen, the control center selects n with the strongest signal intensity according to the signal intensity of the first connectable broadcast messagemaxSetting the corresponding infrared image sensor Bluetooth device as the first-stage infrared image sensor Bluetooth device, and the rest n1-nmaxThe infrared image sensor Bluetooth equipment is set as second-level infrared image sensor Bluetooth equipment, and the second-level infrared image sensor Bluetooth equipment with adjacent Bluetooth addresses is divided into a group of k groups and m groups1+m2+…+mk＝n1-nmax，m1Is the number of the first group of second-stage infrared image sensor Bluetooth devices, m2Number of second-class second-level infrared image sensor Bluetooth devices, mkNumber of kth group of second level infrared image sensor Bluetooth devices, m1、m2、…、mkAre all less than or equal to nmax1K is less than or equal to nmaxFrom n to nmaxAny k infrared image sensor Bluetooth devices are selected from the first-level infrared image sensor Bluetooth devices, each of the k infrared image sensor Bluetooth devices is used as a Bluetooth master device of a group of second-level infrared image sensor Bluetooth devices and a Bluetooth slave device of a control center Bluetooth master device, the rest infrared image sensor Bluetooth devices are used as Bluetooth slave devices of the control center Bluetooth master devices, and n is1-nmaxHas a value of not more than nmax×nmax1Value of (1), nmax1And transmitting data for the maximum number of the Bluetooth slave devices which can be simultaneously connected with each infrared image sensor Bluetooth device. When the number of the infrared image sensor Bluetooth devices is large, the infrared image sensor Bluetooth devices are divided into two-level Bluetooth sub-devices, and can also be divided into more levels with more than three levels. As shown in fig. 4, the control center bluetooth master device 101 is a communication function module of the control center 100, the infrared image sensor bluetooth device 201 is a communication function module of the infrared image sensor 200, the control center further has a storage function module, and the infrared image sensor further has a storage function module.
Step 10, the control center sets a preset number of first-stage main storage areas connected end to end and marks any two continuous first-stage main storage areas as a first-stage main storage entering area, the other one is a first-stage main reading area, the size of each first-stage main storage area is M, a multi-stage connection sequence and time length table of all first-stage infrared image sensor Bluetooth devices and second-stage infrared image sensor Bluetooth devices is created, the sequence and time length of connection with the control center Bluetooth main device are distributed for each first-stage infrared image sensor Bluetooth device, the sequence and time length of connection with the first-stage infrared image sensor Bluetooth device are distributed for each second-stage infrared image sensor Bluetooth device, the sequence and the time length can be set according to actual conditions, preferably, the time length of connection between each first-stage infrared image sensor Bluetooth device and the control center Bluetooth main device is equal, the connection time of each second-level infrared image sensor Bluetooth device and the first-level infrared image sensor Bluetooth device is equal.
Step 11, the control center Bluetooth master device establishes connection with each first-stage infrared image sensor Bluetooth device respectively, and sends the multistage connection sequence and the schedule and the size M of each first-stage main storage area to each first-stage infrared image sensor Bluetooth device; and the k first-stage infrared image sensor Bluetooth devices are respectively connected with the second-stage infrared image sensor Bluetooth devices in the group, and send the multistage connection sequence and time length table, the size M of each first-stage main storage area and the size N of each first-stage auxiliary storage area to each second-stage infrared image sensor Bluetooth device in the group.
Step 12, each first-stage infrared image sensor Bluetooth device receives the multi-stage connection sequence, the time length table and the size M, the infrared image sensor sets a preset number of first-stage slave storage areas in end-to-end connection according to the obtained size M, one of any two continuous blocks of the first-stage slave storage areas is marked as a first-stage slave storage area, the other block is a first-stage slave reading area, the size of each first-stage slave storage area is N, the size of each first-stage slave storage area is smaller than or equal to that of each first-stage master storage area, and collected infrared image data are stored in the first-stage slave storage areas in an initial round mode; each second-level infrared image sensor Bluetooth device receives the multi-level connection sequence and time length table and the size M, N, the infrared image sensor sets a preset number of end-to-end second-level slave storage areas according to the obtained size M, N, one of any two continuous blocks of the second-level slave storage areas is marked as a second-level slave storage area, the other block of the second-level slave storage areas is a second-level slave reading area, the size of each second-level slave storage area is smaller than or equal to the size of each first-level master storage area and smaller than or equal to the size of each first-level slave storage area, and collected infrared image data are stored in the second-level slave storage areas in a first round.
Preferably, the step of first storing the acquired infrared image data into the first-stage secondary storage area or the second-stage secondary storage area is the same as the step of first storing the acquired infrared image data into the secondary storage area, and both the steps include:
step 12-1, storing the acquired frame of infrared image data into the first-level slave storage area or the second-level slave storage area when acquiring one frame of infrared image data;
and step 12-2, each first level moves from the storage area or the second level from the data in the storage area to the next first level from the storage area or the second level from the storage area in one direction, so that the first level is moved from the storage area or the second level from the storage area to be vacant, and the next frame of infrared image data can be stored.
Step 13, the infrared image sensor of each first-stage infrared image sensor Bluetooth device respectively judges whether the first-stage slave storage area is full, and the infrared image sensor of each second-stage infrared image sensor Bluetooth device respectively judges whether the second-stage slave storage area is full; when the first-level slave storage area is not full, the current status is maintained, and the infrared image data is continuously stored into the first-level slave storage area. When the first level slave read-out area stores data, the first level slave read-out area is full; when the secondary slave storage area is not full, the status is maintained, and the infrared image data is continuously stored into the secondary slave storage area. When the second level slave read-out area stores data, it indicates that the second level slave storage area is full.
Step 14, when the first-level slave storage area is full, the first-level infrared image sensor Bluetooth equipment corresponding to the full infrared image sensor sends a first data transmission request message to the control center Bluetooth master equipment; and when the secondary slave storage area is full, the second-level infrared image sensor Bluetooth device corresponding to the full infrared image sensor sends a second data transmission request message to the first-level infrared image sensor Bluetooth device in the group.
And step 15, when the first-level infrared image sensor Bluetooth device receives the second data transmission request message, sending a third data transmission request message to the control center Bluetooth master device.
And step 16, the control center Bluetooth master device receives the first data transmission request message and the third data transmission request message, and the control center obtains the number of the infrared image sensors which are full of the first-level slave storage area and the second-level slave storage area according to the obtained number of the first data transmission request message and the third data transmission request message.
Step 17, the control center judges whether the number of the filled infrared image sensors is equal to n1(ii) a When is not equal to n1And in the process, the infrared image sensors in all the networks are not full, the current situation is maintained, and the waiting is continued.
Step 18, when n is equal to n1And then, infrared image data transmission is carried out between the first-stage infrared image sensor Bluetooth device, the second-stage infrared image sensor Bluetooth device and the control center Bluetooth master device.
Preferably, step 18 comprises:
and step 18-1, the control center Bluetooth master device sends multistage synchronous transceiving time slots to each first-stage infrared image sensor Bluetooth device. The multistage synchronous transceiving time slots comprise a first synchronous transmitting time slot, a first synchronous receiving time slot, a second synchronous transmitting time slot and a second synchronous receiving time slot which are connected in sequence. Preferably, the first synchronous transmission time slot, the second synchronous transmission time slot, the first synchronous reception time slot and the second synchronous reception time slot have the same duration. The time length of each time slot is greater than the time length which is distributed for each first-stage infrared image sensor Bluetooth device in the multi-stage connection sequence and the time length table and is connected with the control center Bluetooth main device and is greater than the time length which is distributed for each second-stage infrared image sensor Bluetooth device and is connected with the first-stage infrared image sensor Bluetooth device.
Step 18-2, each first-stage infrared image sensor Bluetooth device receives the multistage synchronous transceiving time slot, wherein the k first-stage infrared image sensor Bluetooth devices respectively send the multistage synchronous transceiving time slots to each second-stage infrared image sensor Bluetooth device in the group; receiving and sending infrared image data by the k first-stage infrared image sensor Bluetooth devices according to the multistage synchronous transceiving time slots, and remaining nmax-k first level infrared image sensor bluetooth devicesAnd sending infrared image data, and storing the acquired infrared image data into the first-stage slave storage area in turn by the infrared image sensor corresponding to each first-stage infrared image sensor Bluetooth device according to the acquired multistage synchronous transceiving time slots.
Preferably, the k first-level infrared image sensor Bluetooth devices receive and transmit infrared image data according to the multi-level synchronous transceiving time slots, and the rest nmaxThe step that the infrared image data are sent by k first-stage infrared image sensor Bluetooth devices, and the infrared image sensor corresponding to each first-stage infrared image sensor Bluetooth device stores the acquired infrared image data into the first-stage slave storage area in a secondary round according to the acquired multistage synchronous transceiving time slots comprises the following steps:
step 18-2-1, sequentially sending a frame of infrared image data in a first-stage slave reading area to the control center Bluetooth master device by all the first-stage infrared image sensor Bluetooth devices in each second synchronous receiving time slot according to the multistage connection sequence and the sequence in the time length table, emptying the first-stage slave reading area, storing the acquired frame of infrared image data in the first-stage slave storing area by the corresponding infrared image sensor in the subsequent second synchronous sending time slot, moving the data in each first-stage slave storing area to the next first-stage slave storing area in one direction, emptying the first-stage slave storing area, and moving new data into the first-stage slave reading area; the k first-stage infrared image sensor Bluetooth devices sequentially send a frame of infrared image data in a first-stage slave reading area to the control center Bluetooth master device in each first synchronous receiving time slot according to the multi-stage connection sequence and the sequence in the time length table, the first-stage slave reading area is emptied again, and a frame of infrared image data sent by a second-stage infrared image sensor Bluetooth device is received in a subsequent first synchronous sending time slot, the infrared image sensor stores the obtained frame of infrared image data in the first-stage slave storage area, each first-stage slave storage area moves to the next first-stage slave storage area in one direction, the first-stage slave storage area is emptied again, and the first-stage slave reading area moves new data again.
And 18-3, each second-stage infrared image sensor Bluetooth device receives the multistage synchronous receiving and sending time slots and sends infrared image data according to the multistage synchronous receiving and sending time slots, and the infrared image sensor stores the acquired infrared image data into the second-stage slave storage area in a secondary round according to the acquired multistage synchronous receiving and sending time slots.
Preferably, step 18-3 comprises:
and 18-3-1, sequentially sending a frame of infrared image data in a second-stage slave reading area to the first-stage infrared image sensor Bluetooth device by all the second-stage infrared image sensor Bluetooth devices in each first synchronous sending time slot according to the multi-stage connection sequence and the sequence in the time length table, emptying the second-stage slave reading area, storing the acquired frame of infrared image data in the second-stage slave storing area by the corresponding infrared image sensor in the first synchronous receiving time slot of the next period, moving each second stage from the data in the storage area to the next second-stage slave storage area in one direction, emptying the second stage from the storage area, and moving new data in the second stage from the reading area.
And step 18-4, the control center Bluetooth master device receives the infrared image data sent by each first-stage infrared image sensor Bluetooth device according to the multistage synchronous transceiving time slots, and the control center stores the obtained infrared image data into a first-stage main storage area.
Preferably, step 18-4 comprises:
step 18-4-1, the control center bluetooth master device receives a frame of infrared image data sent by a first-level infrared image sensor bluetooth device (one of the k) in each first synchronous receiving time slot according to the sequence of the multi-level connection sequence and the time sequence in the long list, the control center stores the acquired frame of infrared image data into a first-level main storage area, and the data in each first-level main storage area moves to the next first-level main storage area in one direction to empty the first-level main storage area; and receiving a first stage in each second synchronous receive slot in sequenceInfrared image sensor Bluetooth device (for nmaxOne of k) of the infrared image data, the control center stores the acquired infrared image data into the first-level main storage area, and the data in each first-level main storage area is moved to the next first-level main storage area in one direction again, so that the first-level main storage area is emptied again. And after the first-stage main storage area is full, outputting one frame of infrared image data in the first-stage main reading area to the external connection equipment respectively in each first synchronous sending time slot and second synchronous sending time slot, and emptying the first-stage main reading area after each output so as to store the next frame of infrared image data.
The receiving and sending relations of the control center Bluetooth master device, the first-stage infrared image sensor Bluetooth device and the second-stage infrared image sensor Bluetooth device in the multistage receiving and sending time slots are shown in the following table.
Figure BDA0003049903870000141
Figure BDA0003049903870000151
The number n of the first connectable broadcast messages1Exceeding a preset maximum number n of connectionsmaxThe infrared image transmission method based on bluetooth intelligent networking is a method with two-stage infrared image sensor bluetooth equipment, and persons skilled in the art should understand that the method can be also applicable after appropriate conversion when more than three-stage infrared image sensor bluetooth equipment or more than two control center bluetooth master equipment are provided.
According to the infrared image transmission method based on Bluetooth intelligent networking, the networking layer number and the master-slave equipment of the infrared image sensor Bluetooth equipment are intelligently and dynamically distributed according to the maximum value of the preset connectable number, the infrared image sensor Bluetooth equipment is divided into one layer of Bluetooth sub-equipment when the number of the infrared image sensor Bluetooth equipment is small, and is divided into multiple layers of Bluetooth sub-equipment when the number of the infrared image sensor Bluetooth equipment is large, so that the networking capacity is improved, the transmission link is shortened due to the layered arrangement, and the communication efficiency is also improved. The continuous transmission of the infrared image data is realized by arranging the storage areas which are connected end to end and matching with the synchronous transceiving time slot.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (4)

1. An infrared image transmission method based on Bluetooth intelligent networking is characterized by comprising the following steps:
each infrared image sensor Bluetooth device in the coverage range of the control center Bluetooth master device sends a first connectable broadcast message to the control center Bluetooth master device;
the control center Bluetooth master device receives the first connectable broadcast message, and the control center obtains the number n of the infrared image sensor Bluetooth devices to be connected according to the obtained first connectable broadcast message1；
The control center judges the number n of the infrared image sensor Bluetooth devices to be connected1Whether the maximum value n of the preset connectable number is exceededmax；
When said number n is1Does not exceed a preset maximum value n of the number of connectable connectionsmaxWhen the control center is used, the control center sets a preset number of main storage areas which are connected end to end, marks one of any two continuous blocks of the main storage areas as a main storage area, marks the other block as a main reading area, and establishes a connection sequence and time length table of each infrared image sensor Bluetooth device, and allocates the sequence and time length of connection with the control center Bluetooth main device for each infrared image sensor Bluetooth device;
the control center Bluetooth master device is respectively connected with each infrared image sensor Bluetooth device, and sends the connection sequence and the duration table and the size M of each main storage area to each infrared image sensor Bluetooth device;
each infrared image sensor Bluetooth device receives the connection sequence, the duration table and the size M, the infrared image sensor sets preset block numbers of slave storage areas which are connected end to end according to the obtained size M, marks one of any two continuous blocks of the slave storage areas as a slave storage area, marks the other block as a slave reading area, and stores the acquired infrared image data into the slave storage area in an initial round;
each infrared image sensor respectively judges whether the slave storage area is full;
when the slave storage area is full, infrared image data transmission is carried out between the infrared image sensor Bluetooth device and the control center Bluetooth main device;
when the number n of the first connectable broadcast messages is1Exceeding a preset maximum number n of connectionsmaxThen, the control center selects n with the strongest signal intensity according to the signal intensity of the first connectable broadcast messagemaxSetting the corresponding infrared image sensor Bluetooth device as the first-stage infrared image sensor Bluetooth device, and the rest n1-nmaxThe infrared image sensor Bluetooth devices are set as second-level infrared image sensor Bluetooth devices, and the second-level infrared image sensor Bluetooth devices adjacent to the Bluetooth addresses are divided into a group, and the group is divided into k groups;
the control center sets a preset number of first-level main storage areas in end-to-end connection, marks one of any two continuous first-level main storage areas as a first-level main storage area, marks the other one as a first-level main reading area, and creates a multi-level connection sequence and a time length table of all first-level infrared image sensor Bluetooth devices and second-level infrared image sensor Bluetooth devices, wherein the size of each first-level main storage area is M;
the control center Bluetooth master device is respectively connected with each first-stage infrared image sensor Bluetooth device, and sends the multistage connection sequence and the schedule and the size M of each first-stage main storage area to each first-stage infrared image sensor Bluetooth device; the k first-stage infrared image sensor Bluetooth devices are respectively connected with the second-stage infrared image sensor Bluetooth devices in the group, and the multistage connection sequence and time length table, the size M of each first-stage main storage area and the size N of each first-stage slave storage area are sent to each second-stage infrared image sensor Bluetooth device in the group;
each first-stage infrared image sensor Bluetooth device receives the multi-stage connection sequence, the time length table and the size M, the infrared image sensor sets a preset number of first-stage slave storage areas which are connected end to end according to the obtained size M, one of any two continuous blocks of the first-stage slave storage areas is marked as a first-stage slave storage area, the other block is a first-stage slave reading area, the size of each first-stage slave storage area is N, and collected infrared image data are stored in the first-stage slave storage area in a first round; each second-level infrared image sensor Bluetooth device receives M, N the multi-level connection sequence, the schedule and the size, the infrared image sensor sets a preset number of end-to-end second-level slave storage areas according to the obtained size M, N and marks one of any two continuous blocks of the second-level slave storage areas as a second-level slave storage area, the other block is a second-level slave reading area, and collected infrared image data are stored in the second-level slave storage area in a first round;
the infrared image sensor of each first-stage infrared image sensor Bluetooth device respectively judges whether the first-stage slave storage area is full, and the infrared image sensor of each second-stage infrared image sensor Bluetooth device respectively judges whether the second-stage slave storage area is full;
when the first-level slave storage area is full, the first-level infrared image sensor Bluetooth equipment corresponding to the full infrared image sensor sends a first data transmission request message to the control center Bluetooth master equipment; when the second-level slave storage area is full, the second-level infrared image sensor Bluetooth device corresponding to the full-stored infrared image sensor sends a second data transmission request message to the first-level infrared image sensor Bluetooth device in the group;
when the first-level infrared image sensor Bluetooth device receives the second data transmission request message, sending a third data transmission request message to the control center Bluetooth master device;
the control center Bluetooth master device receives the first data transmission request message and the third data transmission request message, and the control center obtains the number of the infrared image sensors which are full of the first-level slave storage area and the second-level slave storage area according to the obtained number of the first data transmission request message and the third data transmission request message;
the control center judges whether the number of the filled infrared image sensors is equal to n1；
When being equal to n1And then, infrared image data transmission is carried out between the first-stage infrared image sensor Bluetooth device, the second-stage infrared image sensor Bluetooth device and the control center Bluetooth master device.
2. The method of claim 1, wherein the step of first storing the acquired infrared image data into the slave storage area comprises:
when one frame of infrared image data is collected, storing the collected one frame of infrared image data into the slave storage area;
the data in each block from the storage area is moved to the next block from the storage area in one direction, and the slave storage area is emptied.
3. The method of claim 1 or 2, wherein the step of transmitting infrared image data between the infrared image sensor bluetooth device and the control center bluetooth master device when the slave storage area is full comprises:
when the slave storage area is full, the infrared image sensor Bluetooth equipment corresponding to the full infrared image sensor sends a data transmission request message to the control center Bluetooth master equipment;
the control center Bluetooth main equipment receives the data transmission request message, and the control center obtains the number of the infrared image sensors which are stored in the storage area according to the obtained number of the data transmission request message;
the control center judges whether the number of the infrared image sensors which are fully stored in the secondary storage area is equal to n1；
When being equal to n1When the infrared image sensor Bluetooth equipment is started, the control center Bluetooth master equipment sends synchronous receiving and sending time slots to each infrared image sensor Bluetooth equipment;
each infrared image sensor Bluetooth device receives the synchronous receiving and sending time slot and sends infrared image data according to the synchronous receiving and sending time slot, and the infrared image sensor stores the acquired infrared image data into the slave storage area in turn according to the acquired synchronous receiving and sending time slot;
the control center Bluetooth main equipment receives the infrared image data sent by each infrared image sensor Bluetooth equipment according to the synchronous receiving and sending time slot, and the control center stores the obtained infrared image data into a main storage area.
4. The method of claim 3, wherein the value is n1And then, the step of transmitting infrared image data between the first-level infrared image sensor Bluetooth device, the second-level infrared image sensor Bluetooth device and the control center Bluetooth master device comprises the following steps:
the control center Bluetooth master device sends multistage synchronous receiving and sending time slots to each first-stage infrared image sensor Bluetooth device; the multistage synchronous transceiving time slots comprise a first synchronous transmitting time slot, a first synchronous receiving time slot, a second synchronous transmitting time slot and a second synchronous receiving time slot which are connected in sequence;
each first-stage infrared image sensor Bluetooth device receives the multistage synchronous transceiving time slot, wherein the k first-stage infrared image sensor Bluetooth devices respectively send the multistage synchronous transceiving time slots to each second-stage infrared image sensor Bluetooth device in the group; and receiving and transmitting infrared rays by the k first-stage infrared image sensor Bluetooth devices according to the multistage synchronous transceiving time slotsImage data, the rest nmaxThe k first-stage infrared image sensor Bluetooth devices transmit infrared image data, and an infrared image sensor corresponding to each first-stage infrared image sensor Bluetooth device stores acquired infrared image data in the first-stage slave storage area in a secondary round according to the acquired multistage synchronous transceiving time slots;
each second-stage infrared image sensor Bluetooth device receives the multistage synchronous receiving and sending time slots and sends infrared image data according to the multistage synchronous receiving and sending time slots, and the infrared image sensor stores the acquired infrared image data into the second-stage slave storage area in turn according to the acquired multistage synchronous receiving and sending time slots;
the control center Bluetooth master device receives the infrared image data sent by each first-stage infrared image sensor Bluetooth device according to the multistage synchronous receiving and sending time slots, and the control center stores the obtained infrared image data into a first-stage main storage area.
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