Wireless transmitter based on star flash wireless communication

Abstract

The utility model discloses a wireless transmitter based on star flash line communication, which belongs to the technical field of wireless transmission, and comprises a body and a sensor, the body comprises a first shell and a second shell, a control circuit board is arranged in the first shell, a battery antenna integrated assembly is arranged in the second shell, and the sensor is arranged in the battery antenna integrated assembly. A star flash processing assembly and a sensing data acquisition module are integrated on the control circuit board, and a sensor is mounted at a mechanical interface at a corresponding position of the first shell; the wireless transmitter has the advantages of stable and complete data transmission by utilizing high bandwidth, high sensitivity and high anti-interference performance of the star flash communication technology, meanwhile, the compactness of the overall structure of the transmitter is remarkably improved by adopting the integrated design of the antenna and the battery, the overall size of the transmitter and the requirement for the installation space are greatly reduced, and in addition, the wireless transmitter is convenient to use. Due to the design of the bulge-free structure, the damage rate of the transmitter in use is reduced, the cost is saved, and the transmitter is convenient to transport; the defects in the prior art are overcome, and certain economic benefits and market value are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to data transmission technical field especially relates to a wireless transmitter based on star flash wireless communication. BACKGROUND

[0002] At present, along with the development of wireless communication technology, a large number of wireless sensor network applications have been expanded to various aspects of industrial production, and the transmitter is the most common instrument in these applications.Transmitter is the converter that the output signal of sensor is changed into the signal (or the non-electric quantity of sensor input is converted into electric signal and is amplified to the signal source for remote measurement and control) that can be identified by controller, that is, sensor and transmitter constitute the monitoring signal source of automatic control together.

[0003] The wireless communication technology used by the current wireless transmitter mainly has Zigbee and LoRa, and the wireless transmitter based on Zigbee or LoRa has corresponding communication mechanism restrictions, for example, low bandwidth, large delay, cannot wake up during hibernation and other problems.Due to the limitation of low bandwidth communication, the wireless program upgrade process is long (several tens of minutes or even longer), and is prone to failure in the middle due to interference, and often needs to be disassembled after the transmitter screen cover, using USB wired connection to configure parameters or program upgrade, which is inconvenient to operate in industrial field, especially in the environment with high requirements for explosion-proof level.

[0004] Since the reliability and environmental adaptability (installation space, high and low temperature environment, etc.) of the industrial environment for the wireless transmitter are higher, in order to improve the accuracy of data transmission, the existing wireless transmitter usually adopts the external antenna type, as shown in Figure 1 and 2 ( the corresponding 5 and 13), the design structure has the following disadvantages when in use:

[0005] (1) the requirement for the installation space of the transmitter is increased (the rotation radius is increased when the instrument is installed, the height is increased, etc.);

[0006] (2) the external antenna often adopts plastic or nylon shell, and the diameter is relatively thin (mostly 10-15mm), and the damage probability is higher in industrial field, especially in the process of regular disassembly, calibration and transportation, which is easy to cause damage due to lack of necessary protection.

[0007] And SparkLink is a new type of short-distance wireless communication technology, which is developed by Chinese enterprise Huawei and supported by many domestic and foreign enterprises; Compared with traditional wireless communication technologies such as Zigbee, LoRa and Bluetooth, the star flash wireless communication technology has the advantages of low delay, high reliability, high concurrency and high sensitivity, and is suitable for various scenes such as intelligent terminal, smart home, intelligent automobile and industrial internet.

[0008] Based on the above analysis, the application designs a wireless transmitter based on star flash wireless communication. Utility model content

[0009] The utility model aims at providing a wireless transmitter based on star flash wireless communication, aiming at solving the high requirement for installation space and the antenna being easily damaged when the existing wireless transmitter adopts the antenna external type.

[0010] In order to solve the above problem, the scheme provides a wireless transmitter based on star flash wireless communication: including the main body and sensor, the main body contains the first shell and the second shell, wherein, at least sensor interface and mechanical interface are arranged on the first shell, and the control circuit board is built-in in the first shell, the control circuit board at least integrates star flash processing assembly and sensor data acquisition module, the second shell is built-in with battery antenna integrated assembly, and the second shell is connected with the first shell through the mechanical interface;The sensor is installed on the first shell through the sensor interface.

[0011] As a preferred scheme of the application: the battery antenna integrated assembly contains battery compartment and soft circuit antenna, the battery compartment is columnar structure, and battery unit is built-in in the battery compartment, the soft circuit antenna is wound on the outer wall of the battery compartment, and the soft circuit antenna supports Bluetooth and star flash communication protocol.

[0012] As a preferred scheme of the application: the battery compartment contains compartment body and cover plate, the cover plate is integrated with NFC near field communication antenna, and at the same time, the control circuit board is integrated with NFC near field communication module.

[0013] As a preferred scheme of the application: containing photovoltaic power supply unit, the photovoltaic power supply unit contains photovoltaic panel and charge and discharge management unit, the photovoltaic panel is arranged at the top of the first shell, and the charge and discharge management unit is integrated on the control circuit board.

[0014] As a preferred scheme of the application: the top of the first shell is provided with a sunken groove, and the photovoltaic panel is installed in the sunken groove.

[0015] As a preferred scheme of the application: the sensor contains at least one of temperature sensor and pressure sensor, and the temperature sensor and pressure sensor are respectively fixedly installed through the corresponding sensor interface arranged on the first shell.

[0016] As a preferred scheme of the application: containing display assembly, the display assembly contains display screen and mirror shell cover, the display screen is installed at the corresponding mechanical interface of the first shell through the mirror shell cover, and at the same time, the display screen is electrically connected with the control circuit board to locally display the collected sensor signals.

[0017] As a preferred scheme of the present application: the control circuit board is provided with a control chip of model BS2821E and peripheral circuits.

[0018] As a preferred scheme of the present application: the second shell is made of polycarbonate.

[0019] As a preferred scheme of the present application: the first shell is made of aluminum alloy.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The body of the wireless transmitter comprises a first shell and a second shell, the first shell is internally provided with a control circuit board, the second shell is internally provided with a battery-antenna integrated assembly, the control circuit board is integrated with a star flash processing assembly and a sensing data acquisition module, and the high bandwidth, high sensitivity and high anti-interference performance of the star flash wireless communication technology can realize the integrated arrangement of the antenna in the second shell, that is, realize the integrated design of the antenna and the battery, and the line gain is improved without the traditional external antenna. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of an existing transmitter provided by the present application;

[0023] Figure 2 is another structural schematic view of an existing transmitter provided by the present application;

[0024] Figure 3 is an axial side structural schematic view of a wireless transmitter provided by the present application in a disassembled state;

[0025] Figure 4 is a side structural schematic view of a wireless transmitter provided by the present application in a disassembled state;

[0026] Figure 5 is a top view structural schematic view of a wireless transmitter provided by the present application in a disassembled state;

[0027] Figure 6 is a control principle diagram of a wireless transmitter provided by the present application;

[0028] Figure 7The utility model provides a battery antenna integrated assembly's decomposition structure schematic view.

[0029] Reference signs

[0030] 10 is first casing, 101 is control circuit board, 102 is recess, 20 is second casing, 201 is battery antenna integrated assembly, 2011 is battery compartment, 2012 is soft circuit antenna, 2013 is battery unit, 2014 is cover plate, 2015 is NFC near field communication antenna, 31 is pressure sensor, 32 is temperature sensor, 40 is photovoltaic panel, 50 is mirror shell cover, 51 is display screen. DETAILED DESCRIPTION

[0031] The utility model makes further detailed explanation in combination with specific embodiment and contrast drawing, should emphasize, the following explanation is only exemplary, and is not used as limiting the scope and its application of the utility model.

[0032] The embodiment provides a wireless transmitter based on star flash wireless communication, which comprises a wireless transmitter main body, a star flash wireless communication module, a power supply module, a signal processing module and a signal output module. Figures 3-5As shown, the transmitter includes a body and a sensor, the body is a protective shell of the transmitter, which comprises a first shell 10 and a second shell 20, wherein the first shell 10 is made of aluminum alloy die casting, the first shell 10 is provided with at least a sensor interface and a mechanical interface, and a control circuit board 101 is built in the first shell 10, the control circuit board 101 is integrated with at least a star flash processing component and a sensor data acquisition module, the star flash processing component has a star flash communication function, the star flash processing component is combined by a star flash communication module and a processor through a standard interface, or the star flash processing component is a star flash processor specially integrated with star flash function, and the preferred embodiment is the latter, specifically a star flash processing chip with model BS2821E is adopted, the star flash processing chip has a RISC-V processor core and star flash and Bluetooth communication kernels; the star flash processing component replaces the traditional Zigbee and LoRa communication technology, and solves the shortcomings of the traditional communication technology by using the advantages of the star flash processing component such as low delay, high reliability, high concurrency and high sensitivity, and ensures accurate and effective transmission of data; the sensor data acquisition module is used to realize acquisition and processing of various sensor signals; it can be understood that the control circuit board 101 can be arranged at any position in the inner cavity of the first shell 10 in any state, and the specific position can be determined according to the structure of the inner cavity of the first shell 10 and the size and structure of the control circuit board 101; the second shell 20 is built in a battery antenna integrated component 201, which is a structure integrating the antenna and the battery, that is, the antenna and the battery are integrated and built in the second shell 20 in the embodiment, which discards the shortcomings of the traditional antenna external structure, specifically, the antenna built-in design structure can not only improve the compactness of the overall structure of the transmitter, but also greatly reduce the overall volume of the transmitter and the requirement for installation space, in addition, the design structure cooperates with the high reliability, low delay and high sensitivity of the star flash wireless communication technology to effectively improve the accuracy of data transmission, and the second shell 20 of the embodiment is made of polycarbonate material, which has better dielectric performance and electromagnetic compatibility than metal material, and can ensure the integrity and stability of data transmission, further improve the accuracy of data transmission, specifically, the attenuation coefficient of common wireless communication frequency bands such as 433MHz, 868MHz, 915MHz and 2.4GHz after polycarbonate material is usually less than 0.5dB / cm, so the signal penetration is good, which can ensure the antenna to successfully transmit and receive signals. Meanwhile, the polycarbonate material has good mechanical strength, impact resistance and dimensional stability, which can provide reliable protection for the internal battery antenna integrated assembly 201. The second shell 20 is connected with the first shell 10 through a mechanical interface, and the second shell 20 is preferably located at the axial end of the first shell 10. The sensor is installed on the first shell 10 through a sensor interface. The type of the sensor can be selected according to actual needs, and it can be understood that if multiple types of sensors are included, the sensor interface should be provided with a plurality of corresponding sensor interfaces. In the embodiment, the sensor preferably includes a temperature sensor 32 and a pressure sensor 31. The pressure sensor 31 is preferably a diffused silicon pressure sensor 31, and the temperature sensor 32 is preferably a PT100 temperature sensor 32. The diffused silicon pressure sensor 31 and the PT100 temperature sensor 32 are respectively fixedly installed through the corresponding sensor interfaces provided on the first shell 10 and are electrically connected with the control circuit board 101 to convert the measured pressure value and temperature value into corresponding electrical signals. The control circuit board 101 acquires the pressure and temperature signals. Specifically, after the sensing data acquisition module acquires the sensing signals, it digitizes the sensing signals through the BS2821E star flash processing chip and transmits the sensing signals remotely using the star flash wireless communication technology. According to the. Figure 3 It can be seen that in the embodiment, the sensor interface for installing the pressure sensor 31 is arranged at the bottom of the first shell 10 (relative to the installation state), and the sensor interface for installing the temperature sensor 32 is arranged at the side of the first shell 10. In this way, the pressure sensor 31 and the temperature sensor 32 can be prevented from interfering with each other during installation and use.

[0033] It can be seen that in the embodiment, the sensor interface for installing the pressure sensor 31 is arranged at the bottom of the first shell 10 (relative to the installation state), and the sensor interface for installing the temperature sensor 32 is arranged at the side of the first shell 10. In this way, the pressure sensor 31 and the temperature sensor 32 can be prevented from interfering with each other during installation and use.

[0034] As Figure 7As shown, an exploded structural schematic view of the battery antenna integrated assembly 201 provided by the embodiment is shown, the battery antenna integrated assembly 201 comprises a battery compartment 2011 and a soft circuit antenna 2012 (a conventional high-gain FPC antenna), the battery compartment 2011 is made of nylon and has a columnar structure, preferably a cylindrical structure, the battery compartment 2011 preferably comprises a compartment body and a cover plate 2014, the compartment body is internally provided with a battery unit 2013, and the cover plate 2014 can be covered on the opening end of the compartment body to achieve sealing; the battery unit 2013 is preferably a rechargeable lithium battery which can provide a working voltage of 3.6V, and the battery unit 2013 is fixed in the compartment body by a glue sealing method to achieve safety protection; the soft circuit antenna 2012, i.e. the FPC antenna, is wound on the outer wall of the compartment body to form a cylindrical structure, the soft circuit antenna 2012 supports Bluetooth and star flash communication protocols, and it can be understood that the winding number (length) of the soft circuit antenna 2012 can be selectively arranged according to the required gain intensity; the assembled battery antenna integrated assembly 201 is fixed at the mechanical interface of the first shell 10 or in the second shell 20, and the embodiment is preferably fixed at the mechanical interface of the first shell 10, and the second shell 20 is provided as a protective cover outside the battery antenna integrated assembly 201 and is fixedly connected with the first shell 10 by threads or screws.

[0035] The wireless transmitter further comprises a display assembly comprising a display screen 51 and a mirror shell cover 50, the display screen 51 is mounted at the corresponding mechanical interface of the first shell 10 through the mirror shell cover 50, and at the same time, the display screen 51 is electrically connected with the control circuit board 101 to locally display the collected sensing signals.

[0036] Specifically, the display assembly is located at the axial end of the first shell 10 and is in an opposite position with the second shell 20, i.e. the display assembly and the second shell 20 are respectively mounted at the opposite axial ends of the first shell 10, and the display screen 51 in the display assembly is preferably an LCD display screen 51 which is connected with the control circuit board 101 to locally display the sensing signals digitized by the control circuit board 101; the mirror shell cover 50 is a fixed and protective shell of the display screen 51, and it is fixedly connected with the first shell 10 by screws or threads, and it can be understood that the side opposite to the display screen 51 of the mirror shell cover 50 should be made of transparent material to facilitate reading.

[0037] As a preferred scheme of the present application, the cover plate 2014 is covered on the end of the battery compartment 2011 located at the outer side, and an NFC near field communication antenna 2015 is integrated on the cover plate 2014, and at the same time, an NFC near field communication module is integrated on the control circuit board 101, and it can be understood that the NFC near field communication module is a separate module which is connected with the star flash processing assembly through a standard interface, or it is integrated in the star flash processing assembly, i.e. the star flash processing assembly has the NFC near field communication function.

[0038] Specifically, the NFC near field communication antenna 2015 is integrated on the cover plate 2014 at the outer end of the battery compartment 2011, so that the transmitter has the function of near field communication, and the near field communication function is used to realize the transmitter configuration program touch trigger. When in use, the configuration tool with NFC function (which can be a mobile phone, tablet, other handheld terminal, etc.) is close to the NFC near field communication antenna 2015 of the cover plate 2014 to trigger the transmitter NFC function. The NFC function trigger can make the transmitter quickly point-to-point wireless connection with the configuration tool, and then perform wireless configuration. It solves the problems of traditional wired connection which needs to disassemble and assemble the watch shell and the original wireless connection which needs complex configuration trigger. The operation convenience is greatly improved. At the same time, the complexity of manual operation is greatly reduced, and the failure rate caused by disassembling the instrument shell is also reduced.

[0039] The specific operation process is as follows (take a mobile phone with NFC function as a configuration tool for example):

[0040] (1) Turn on the NFC communication function of the mobile phone, and open the wireless transmitter configuration and maintenance software installed on the mobile phone;

[0041] (2) The mobile phone is close to the rear of the second shell 20 of the transmitter to trigger the wireless transmitter NFC function;

[0042] (3) After the wireless transmitter NFC function is triggered, it will automatically perform wireless pairing (Bluetooth pairing or star flash wireless communication pairing) with the mobile phone;

[0043] (4) After pairing, the wireless transmitter configuration and maintenance software installed on the mobile phone will automatically obtain the device information, current state and work log of the transmitter, etc.

[0044] (5) Perform parameter configuration or program upgrade through the maintenance software installed on the mobile phone;

[0045] (6) After the operation is completed, no other operation is required. After 30 seconds of inaction, the device automatically enters a low-power standby state.

[0046] As a preferred embodiment of the present application, in order to improve the endurance of the transmitter and ensure its stable and continuous operation, the transmitter further comprises a photovoltaic power supply unit, which comprises a photovoltaic panel 40 and a charge-discharge management unit. Due to the integrated design of the antenna and the battery, the top of the first shell 10 has sufficient installation space, so the photovoltaic panel 40 is arranged at the top of the first shell 10. The charge-discharge management unit is integrated on the control circuit board 101, and a CN3791 solar charge-discharge management chip with MPPT (Maximum Power Point Tracking, MPPT for short) function is used. The power output end of the photovoltaic power supply unit can include two paths, one directly powers the transmitter, and the other charges the battery unit 2013. By adding the photovoltaic power supply unit, the battery can be maintained without maintenance in a light environment (the standby power consumption of the wireless transmitter is about 5uA@3.3V, the average power consumption is about 2-3mA@3.3V, and the communication is once per minute).

[0047] The embodiment preferably sets a sunken groove 102 at the top of the first shell 10, and the photovoltaic panel 40 is inlaid in the sunken groove 102. Of course, without considering the compactness and aesthetics of the transmitter structure, a photovoltaic support can be arranged on the top of the body if necessary, and the photovoltaic panel 40 is fixed above the transmitter through the photovoltaic support. This way can reduce the size limitation of the photovoltaic panel 40; the embodiment preferably adopts the former mounting structure, that is, the photovoltaic panel 40 is fixed through the sunken groove 102. The advantage of this structure is that it can improve the compactness of the overall structure of the transmitter, facilitate transportation, and reduce the damage rate. The disadvantage is that the size of the photovoltaic panel 40 is limited. The preferred size of the embodiment is 60x30mm, but experiments show that the photovoltaic panel 40 of this size can provide a maximum working voltage of 30mA 5V, meeting the endurance requirements of the transmitter.

[0048] Specifically, the standby power consumption of the wireless transmitter is less than 5uA 3.6V, the sensor acquisition state power consumption is less than 5mA 3.6V (1 acquisition time is about 10ms), and the maximum power consumption of wireless communication is 50mA 3.6V (1 communication time is about 10ms). Therefore, with the frequency of 1 acquisition and wireless communication task per minute, the average power consumption current of the wireless transmitter is:

[0049] (0.005*(60*1000-10-10)+5*10+50*10) / (60*1000)=0.01416mA / ms;

[0050] The photovoltaic power supply unit in the embodiment can reach an average charging current of 15mA under normal light conditions, and thus for a sensor that collects and transmits data once per minute, less than 1 second of charging time is needed to complete the energy storage for one task, and 43200 times of collection and transmission of task energy can be provided per day under 6 hours of light, which is enough to support the transmitter to collect and wirelessly transmit data once per minute for 30 days.

[0051] As Figure 6 shown, the control schematic of the wireless transmitter provided in the embodiment, in the embodiment, the photovoltaic power supply unit provides operating voltage for the entire system, and the control circuit board 101 is provided with a control chip of BS2821E and peripheral circuits, wherein the BS2821E chip has a RISC-V processor core, integrated star flash wireless communication and NFC near field communication functions, and is compatible with Bluetooth wireless communication function (supports using a terminal with Bluetooth function, such as a mobile phone, a tablet, etc.), and has four-wire high-precision ADC acquisition function (sensor data acquisition module) and USB communication function.

[0052] The control chip of BS2821E serves as the core control device of the transmitter, when data is collected, the sensor data acquisition module acquires signals collected by any one of the temperature sensor 32 and the pressure sensor 31, and the control chip of BS2821E digitizes the signals and transmits them to the host computer end through the cooperation of the star flash communication function and the soft circuit antenna 2012, at the same time, the control display screen 51 is started to perform local display; when the transmitter is configured, a configuration tool with NFC function and transmitter configuration and maintenance software is used to approach the NFC near field communication antenna 2015 of the transmitter to trigger the NFC function of the transmitter, and then wake up the low-power transmitter, so as to automatically pair with the configuration tool by using star flash wireless communication technology or Bluetooth technology, and complete subsequent transmitter configuration and upgrade operation after pairing.

[0053] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the present application, some improvements can be made, which should also be regarded as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of the claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A wireless transmitter based on star flash wireless communication, characterized by: The application relates to a sensor device, which comprises a body and a sensor, wherein the body comprises a first shell and a second shell, the first shell is provided with at least a sensor interface and a mechanical interface, and a control circuit board is arranged in the first shell, the control circuit board is integrated with at least a star flash processing component and a sensor data acquisition module, the second shell is arranged with a battery antenna integrated component, and the second shell is connected with the first shell through the mechanical interface; and the sensor is mounted on the first shell through the sensor interface.

2. The wireless star flash communication based wireless transmitter according to claim 1, characterized in that: The battery antenna integrated component comprises a battery compartment and a soft circuit antenna, the battery compartment is in a columnar structure, and a battery unit is arranged in the battery compartment, and the soft circuit antenna is wound on the outer wall of the battery compartment, and the soft circuit antenna supports Bluetooth and star flash communication protocols.

3. The wireless star flash communication based wireless transmitter of claim 2, wherein: The battery compartment comprises a compartment body and a cover plate, the cover plate is integrated with an NFC near field communication antenna, and the control circuit board is integrated with an NFC near field communication module.

4. The wireless star flash communication based wireless transmitter of claim 1, wherein: The application further comprises a photovoltaic power supply unit, which comprises a photovoltaic panel and a charge and discharge management unit, the photovoltaic panel is arranged on the top of the first shell, and the charge and discharge management unit is integrated on the control circuit board.

5. The wireless star flash communication based wireless transmitter of claim 4, wherein: The top of the first shell is provided with a sunken groove, and the photovoltaic panel is arranged in the sunken groove.

6. The wireless star flash communication based wireless transmitter of claim 1, wherein: The sensor comprises at least one of a temperature sensor and a pressure sensor, and the temperature sensor and the pressure sensor are respectively fixedly arranged through corresponding sensor interfaces arranged on the first shell.

7. The wireless star flash wireless communication based wireless transmitter of claim 1, wherein: The application further comprises a display component, which comprises a display screen and a mirror shell cover, the display screen is arranged on the corresponding mechanical interface of the first shell through the mirror shell cover, and the display screen is electrically connected with the control circuit board to locally display the collected sensor signals.

8. The wireless star flash wireless communication based wireless transmitter of claim 1, wherein: The control circuit board is provided with a control chip of BS2821E type and peripheral circuits.

9. The wireless star flash communication based wireless transmitter of claim 1, wherein: The second shell is made of polycarbon acid material.

10. The wireless star flash wireless communication based wireless transmitter according to claim 1, characterized in that: The first shell is made of aluminum alloy material.

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