CN208985694U - A kind of audio player for RFID logistic car - Google Patents
A kind of audio player for RFID logistic car Download PDFInfo
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- CN208985694U CN208985694U CN201822023459.XU CN201822023459U CN208985694U CN 208985694 U CN208985694 U CN 208985694U CN 201822023459 U CN201822023459 U CN 201822023459U CN 208985694 U CN208985694 U CN 208985694U
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- microprocessor
- audio
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- output end
- logistic car
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Abstract
The utility model discloses a kind of audio players for RFID logistic car, including microprocessor, and connect respectively with microprocessor audio storage module, audio decoding circuit, USB interface, WiFi module, the audio amplifier circuit being connect with audio decoding circuit, the loudspeaker being connect with audio amplifier circuit；Audio decoding circuit is used to the digitized audio message that microprocessor exports being converted to analog audio signal, audio amplifier circuit is for amplifying the analog audio signal that audio decoding circuit exports, loudspeaker is used to audio amplifier circuit output electric signal being converted to acoustical signal, USB interface is for connecting external equipment, and WiFi module is for being connected to internet.The function for the audio alert and music that RFID logistic car arrives at a station can be realized by the utility model.
Description
Technical field
The utility model relates to logistics equipment fields, more particularly, to a kind of audio player for RFID logistic car.
Background technique
In hospital's rail mounted logistics system, RFID logistic car is the biography of rail mounted logistic transmission system for loading article
Transmission carrier occupies important position in entire logistics system.Existing RFID logistic car cannot achieve audio alert and music
The function of broadcasting, thus a kind of audio player for RFID logistic car can be designed, for being realized on RFID logistic car
The function that audio plays.
Summary of the invention
The utility model provides a kind of audio player for RFID logistic car, for solving existing RFID logistic car
It cannot achieve the function of audio alert and music.
Realize technical characteristic used in the utility model are as follows:
A kind of audio player for RFID logistic car, it is characterised in that: including microprocessor, memory module, decoding
Circuit, USB interface, amplifying circuit and loudspeaker；
Memory module is connect with microprocessor, is written and read by microprocessor to storage module；
The input terminal of decoding circuit and the output end of microprocessor connect, and decoding circuit is used for the number for inputting microprocessor
Word signal is converted to the first analog signal；
The input terminal of amplifying circuit and the output end of decoding circuit connect, and amplifying circuit is used to amplify the first analog signal
At the second analog signal；
The input terminal of loudspeaker and the output end of amplifying circuit connect, and loudspeaker is used to the second analog signal being converted to sound
Signal；
USB interface output end is connect with microprocessor input, and microprocessor is logical by USB interface and outer computer
Letter.
It further, further include key module and display module, key module output end is connect with output end of microprocessor,
Display module input terminal is connect with output end of microprocessor.
It further, further include WiFi module, WiFi module output end is connect with microprocessor input.
The utility model has the advantages that
The function that the voice reminder that RFID logistic car arrives at a station and music can be realized by the utility model, passes through RFID
Logistics trolley logistic car mainboard flexibly controls the utility model.
Detailed description of the invention
With reference to the accompanying drawing and specific embodiment the utility model is described in further detail, in which:
Fig. 1 is the circuit modular structure figure of specific embodiment.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.
As shown in Figure 1, a kind of audio player for RFID logistic car, including microprocessor, memory module, decoding electricity
Road, USB interface, amplifying circuit and loudspeaker；Memory module is connect with microprocessor, is carried out by microprocessor to storage module
Read-write；The input terminal of decoding circuit and the output end of microprocessor connect, and decoding circuit is used for the number for inputting microprocessor
Signal is converted to the first analog signal；The input terminal of amplifying circuit and the output end of decoding circuit connect, and amplifying circuit is used for will
First analog signal zooms into the second analog signal；The input terminal of loudspeaker and the output end of amplifying circuit connect, and loudspeaker is used
In the second analog signal is converted to acoustical signal；USB interface output end is connect with microprocessor input, and microprocessor passes through
USB interface is communicated with outer computer.
Microprocessor is used to receive the label signal of the RFID reader of RFID logistic car mainboard reading and reads storage mould
Corresponding audio file information in block, and the audio digital signals read are transmitted in decoding circuit, and by aobvious
Show that module shows the file information (such as file name, file size, playout length of broadcasting etc.), while responding key module
Adjust (such as pause, F.F. and volume adjustment etc.).
Memory module is for storing pre-prepd audio file (such as song files, voice broadcast file etc.), micro- place
Manage the file in the read-write memory module of device.Preferably, SD card memory module can be used in memory module.20 are at most arranged in SD card
A file, each file is interior to store at most 255 songs, and microprocessor is readable to SD card writeable, by USB interface and outside
The computer in portion is connected, and computer is modified the audio file in SD card by USB interface.
Decoding circuit is used to the digital signal in memory module that microprocessor transmits being converted to analog signal, including D/
A conversion chip, D/A conversion chip are communicated with microprocessor by three line SPI interfaces, and D/A conversion chip is used for SPI communication
Pin be respectively connected to microprocessor for SPI communication pin.
Amplifying circuit be used for by the analog signal that decoding circuit transmits be amplified to can drive the speaker degree, amplifying circuit
Including integrated operational amplifier.Loudspeaker is used to that acoustical signal output will to be converted by the electric signal of amplifying circuit amplification.
WiFi module is used to the utility model being connected to internet, it is preferred that WiFi module uses the serial ports of 2.4GHz
The WiFi signal of WiFi module, 2.4GHz frequency range has stronger through-wall performance, it can be ensured that it is mutual that the utility model stablizes access
Networking.
In hospital's rail mounted logistics system, RFID logistic car includes logistic car mainboard and RFID reader, RFID reader
Output end connection logistics car owner plate input terminal, several different RFID label tags are set on the guideway path of logistics system.This
Utility model is used for the logistic car based on RFID technique, and logistic car mainboard is by way of serial communication and music player
Microprocessor carry out data exchange, therefore, logistic car mainboard is equivalent to the host computer of the utility model microprocessor, logistic car
The microprocessor that mainboard can will read FRID label information and be transferred to music player, and can flexibly control the utility model
Audio plays, stops, while can enable/forbid the audio playing function of the utility model.The utility model audio plays enabled
In the case where, when advancing on RFID logistic car morning guide rail, RFID reader is carried out from the different RFID label tags being arranged on guide rail
It communicates and the FRID label information read is transmitted to logistic car mainboard, the FRID label information that logistic car mainboard will receive
It is transmitted to the microprocessor of music player, position letter representated by the microprocessor identification FRID label information of music player
Breath, plays different songs, for example, by playing soft song when ward, by playing nursery rhymes etc. when childhood visits region；
Or carry out voice broadcast, such as reach nurse await orders region when, remind counterpart personnel take out article.Simultaneously in hospital's rail mounted
In logistics system, because RFID logistic car moving surface is larger, by the WiFi module being arranged on music player, Central Control Room can lead to
Cross the voice broadcast (such as looking for patient or family members, publication related announcement etc.) of network implementations in some cases.
It is the preferred embodiment of the utility model it should be noted that described above, the utility model not office
It is limited to above embodiment, as long as its technical effect for reaching the utility model with identical means, it is practical new all should belong to this
The protection scope of type.
Claims (3)
1. a kind of audio player for RFID logistic car, it is characterised in that: including microprocessor, memory module, decoding electricity
Road, USB interface, amplifying circuit and loudspeaker；
Memory module is connect with microprocessor, is written and read by microprocessor to storage module；
The input terminal of decoding circuit and the output end of microprocessor connect, and the number that decoding circuit is used to input microprocessor is believed
Number it is converted to the first analog signal；
The output end of the input terminal of amplifying circuit and decoding circuit connects, and amplifying circuit is used to zoom into the first analog signal the
Two analog signals；
The input terminal of loudspeaker and the output end of amplifying circuit connect, and loudspeaker is used to for the second analog signal to be converted to sound letter
Number；
USB interface output end is connect with microprocessor input, and microprocessor is communicated by USB interface with outer computer.
2. a kind of audio player for RFID logistic car as described in claim 1, it is characterised in that: further include key mould
Block and display module, key module output end are connect with output end of microprocessor, and display module input terminal and microprocessor export
End connection.
3. a kind of audio player for RFID logistic car as described in claim 1, it is characterised in that: further include WiFi mould
Block, WiFi module output end are connect with microprocessor input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822023459.XU CN208985694U (en) | 2018-12-04 | 2018-12-04 | A kind of audio player for RFID logistic car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822023459.XU CN208985694U (en) | 2018-12-04 | 2018-12-04 | A kind of audio player for RFID logistic car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208985694U true CN208985694U (en) | 2019-06-14 |
Family
ID=66791787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822023459.XU Active CN208985694U (en) | 2018-12-04 | 2018-12-04 | A kind of audio player for RFID logistic car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208985694U (en) |
-
2018
- 2018-12-04 CN CN201822023459.XU patent/CN208985694U/en active Active
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