CN202534145U

CN202534145U - Bluetooth sensor

Info

Publication number: CN202534145U
Application number: CN2012201812737U
Authority: CN
Inventors: 吴保方
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-26
Filing date: 2012-04-26
Publication date: 2012-11-14
Anticipated expiration: 2022-04-26

Abstract

The utility model discloses a Bluetooth sensor, which comprises a sensor module, a main control module and a Bluetooth data transmission module, wherein the sensor module is used for acquiring data; the main control module is used for processing the data; the Bluetooth data transmission module is used for wirelessly transmitting the processed data by Bluetooth; and the main control module is electrically connected with the sensor module and the Bluetooth data transmission module respectively. By using the Bluetooth sensor, a phenomenon that the conventional sensor is limited by communication conditions and power cables when installed is avoided; and moreover, the Bluetooth sensor is small in size, low in power consumption, conveniently and fast to install and use, and wide in application range.

Description

Bluetooth sensor

Technical field

The utility model relates to a kind of sensor, particularly a kind of industrial wireless blue tooth sensor.

Background technology

In industrial circle, the usable range of sensor is very extensive, and conventional sensor comprises Temperature Humidity Sensor, displacement transducer, pressure transducer, flow sensor and torque sensor or the like.No matter these sensors adopt any principle, and most sensors all adopt data line that sensing data is delivered on receiving trap or the display device, in recent years; Occurred some wireless sensers successively, these wireless sensers use the principle of ultrasound wave, infrared ray, GPRS transmission mostly, but technical at short distance communication; Infrared ray can not pass barrier; And transmission range is restricted to line-of-sight distance, and ultrasound wave, these wireless sensers of GPRS are bulky, cause use occasion to be restricted; And safeguard and install comparatively inconvenience, these have all greatly limited the flexible Application of sensor.

The utility model content

In order to overcome the deficiency of existing sensor, the utility model provides a kind of industrial wireless blue tooth sensor, this bluetooth sensor can be not connection through data line realize short-range wireless transmission, and volume is little, installs and easy to maintenance.

For solving the problems of the technologies described above; The utility model is realized as follows: a kind of bluetooth sensor; Comprise sensor assembly, main control module and blue-teeth data transport module, said sensor assembly is used for image data, and said main control module is used for deal with data; Said blue-teeth data transport module is used for the data after handling are carried out the wireless blue tooth transmission, and said main control module is electrically connected with said sensor assembly and said blue-teeth data transport module respectively.

Said sensor assembly can comprise any one or its combination in any in Temperature Humidity Sensor, pressure transducer, displacement transducer, torque sensor and the flow sensor.

Said main control module comprises: signal amplification circuit, AD converter, primary controller MCU, communication level modular converter and crystal oscillating circuit; Said primary controller MCU is electrically connected with an end of an end, crystal oscillating circuit and the communication level modular converter of AD converter respectively; The other end of said AD converter is electrically connected with an end of signal amplification circuit; The other end of said signal amplification circuit is electrically connected with said sensor assembly; The other end of said communication level modular converter is electrically connected with the blue-teeth data transport module, and said primary controller MCU adopts the assembly language programming, and said AD converter is 12 figure place mould converters.

Said blue-teeth data transmission mode comprises bluetooth module, and the bluetooth working stamndard that said bluetooth module piece adopts is IEEE802.15, and frequency band is 2.4GHz, and bandwidth is 1Mb/s.Said blue-teeth data transport module adopts the C51 programming language.

The good effect of the utility model is: the use of the utility model, used the restriction of communication condition and power cable when having avoided existing sensor to install, and volume is little, power consumption is low, easy to install quick, range of application is very extensive.

Description of drawings

Fig. 1 is the structure principle chart of the utility model

Fig. 2 is that the blue-teeth data transport module of the utility model sends signal flow graph

Fig. 3 is that the bluetooth receiver module of the utility model receives signal flow graph

1. sensor assemblies among the figure, 2. main control module, 3. blue-teeth data transport module, 4. bluetooth receiver module, 5. receiver module.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.

A kind of bluetooth sensor; Comprise sensor assembly (1), main control module (2) and blue-teeth data transport module (3); Said sensor assembly (1) is used for image data; Said main control module (2) is used for deal with data, and said blue-teeth data transport module (3) is used for the data after handling are carried out the wireless blue tooth transmission, and said main control module (2) is electrically connected with said sensor assembly (1) and said blue-teeth data transport module (3) respectively.

Said sensor assembly (1) can comprise any one or its combination in any in Temperature Humidity Sensor, pressure transducer, displacement transducer, torque sensor and the flow sensor.

Said blue-teeth data transmission mode (3) comprises bluetooth module, and the bluetooth working stamndard that said bluetooth module piece adopts is IEEE802.15, and frequency band is 2.4GHz, and bandwidth is 1Mb/s.Said blue-teeth data transport module adopts the C51 programming language.

Existing is the concrete course of work that example is introduced this bluetooth sensor in detail with the Temperature Humidity Sensor; As shown in Figure 1; At first carry out the collection of temperature and moisture signal through Temperature Humidity Sensor (1), and the signal that collects is sent to main control module (2), the signal that the signal amplification circuit in the main control module (2) collects Temperature Humidity Sensor (1) earlier carries out processing and amplifying; Then be sent to AD converter and carry out digital-to-analog conversion; Crystal oscillating circuit is used to primary controller MCU the stable clock signal is provided, and under the control of primary controller MCU, the data after the digital-to-analog conversion can be on one's own initiative perhaps under the instruction of MCU; Carry out delivering to blue-teeth data transport module (3) after the level conversion through the communication level modular converter, and signal wireless is transmitted by blue-teeth data transport module (3).Bluetooth receiver module this moment (4) receives signal and is sent to receiver module (5), accomplishes the exchange of whole blue teeth wireless data to this.The structure of said receiver module (5) and principle and said main control module (2) are identical, and the structure of said bluetooth receiver module (4) and principle and said blue-teeth data transport module (3) are identical.

Primary controller MCU in the said main control module (2) adopts the assembly language programming, and MCU adopts timing sampling, and selecting concrete timing mode is 2 mode of operation, and timing is 100 microseconds, and the interface of primary controller MCU is operated in mode 1 in addition, and baud rate is 9600bps.Primary controller MCU adopts the mode of inquiry to read the transformation result of communication level modular converter, and the data after will changing are then deposited to internal storage.

Blue-teeth data transport module (3) and bluetooth receiver module (4) adopt the C51 Programming with Pascal Language; The main realization utilizes the HCI layer of primary controller MCU to set up the asynchronous no link data transmission channel of point-to-point bluetooth; HCI provides the unified interface of visit and control bluetooth hardware as the interface between the software and hardware in the bluetooth software protocol stack for the upper strata.HCI carries out message exchange through the mode of divide into groups (Packet).HCI divides into groups to have three types: instruction packet (Command Packet), event packets (Event Packet) and packet (Data Packet).After the HCI of primary controller MCU layer is set up the asynchronous no link data transmission channel success of point-to-point bluetooth; Just can be according to the HCI data standard packet format transceive data of bluetooth specification; Main control module (2) and receiver module (5) adopt with instruction--the mode of replying communicates, and in the utility model, only relates to data communication with said bluetooth module; And do not relate to voice communication, what therefore set up is the ACL link.The software interface of primary controller MCU and blue-teeth data transport module (3) and bluetooth receiver module (4) is realized its data transmission through software.The process of communicating by letter between primary controller MCU and bluetooth module is through keying in the HCI instruction, observing the HCI incident of receiving.

It is as shown in Figure 2 that blue-teeth data transport module (3) sends signal flow graph, and program begins, the initialization serial ports; The initialization bluetooth module is provided with the bluetooth module parameter, judge that parameter is provided with success not? Unsuccessful returning reinitializes bluetooth module; Set up bluetooth module after the success and connect, judge whether successfully to set up the Bluetooth ACL link again? Unsuccessful returning reinitializes bluetooth module, just begins to be provided with the bluetooth module baud rate if successfully set up; Baud rate is provided with unsuccessful just returning and reinitializes bluetooth module; Baud rate is provided with success and just sends data, and judges whether the transmission data are successful, if success; EOP (end of program) does not become just to return to reinitialize bluetooth module.

It is as shown in Figure 3 that bluetooth receiver module (4) receives signal flow graph, and program begins, the initialization serial ports; The initialization bluetooth module is provided with the bluetooth module parameter, judge that parameter is provided with success not? Unsuccessful returning reinitializes bluetooth module; The connection signal that accepts request is waited in the success back, judge again and before overtime, receive master side's request connection event? Unsuccessful returning reinitializes bluetooth module, if success just receives master side's connection request; Judge whether successfully to set up the Bluetooth ACL link again? Unsuccessful just returning reinitializes bluetooth module, after the success bluetooth module baud rate is set, and baud rate is provided with success and just receives data; Judge then whether the reception data are successful; If success, EOP (end of program) does not become to return to reinitialize bluetooth module.

The above-described preferred embodiment that is merely the utility model; Institute is understood that; The explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model; And be not used in the protection domain that limits the utility model, and any modification of being made within all thought and principles at the utility model, being equal to replacement or the like, all should be included within the protection domain of the utility model.

Claims

1. bluetooth sensor; Comprise sensor assembly; It is characterized in that: also comprise main control module and blue-teeth data transport module, said sensor assembly is used for image data, and said main control module is used for deal with data; Said blue-teeth data transport module is used for the data after handling are carried out the wireless blue tooth transmission, and said main control module is electrically connected with said sensor assembly and said blue-teeth data transport module respectively.

2. bluetooth sensor according to claim 1 is characterized in that: said sensor assembly can comprise any one or its combination in any in Temperature Humidity Sensor, pressure transducer, displacement transducer, torque sensor and the flow sensor.

3. bluetooth sensor according to claim 2; It is characterized in that: said main control module comprises: signal amplification circuit, AD converter, primary controller MCU, communication level modular converter and crystal oscillating circuit; Said primary controller MCU is electrically connected with an end of an end, crystal oscillating circuit and the communication level modular converter of AD converter respectively; The other end of said AD converter is electrically connected with an end of signal amplification circuit; The other end of said signal amplification circuit is electrically connected with said sensor assembly, and the other end of said communication level modular converter is electrically connected with the blue-teeth data transport module.

4. bluetooth sensor according to claim 3 is characterized in that: said primary controller MCU adopts the assembly language programming.

5. bluetooth sensor according to claim 4 is characterized in that: said AD converter is 12 figure place mould converters.

6. bluetooth sensor according to claim 5 is characterized in that: said blue-teeth data transmission mode comprises bluetooth module, and the bluetooth working stamndard that said bluetooth module piece adopts is IEEE802.15, and frequency band is 2.4GHz, and bandwidth is 1Mb/s.

7. bluetooth sensor according to claim 6 is characterized in that: said blue-teeth data transport module adopts the C51 programming language.