CN206402240U - digital signature secure broadcast device - Google Patents
digital signature secure broadcast device Download PDFInfo
- Publication number
- CN206402240U CN206402240U CN201621425466.7U CN201621425466U CN206402240U CN 206402240 U CN206402240 U CN 206402240U CN 201621425466 U CN201621425466 U CN 201621425466U CN 206402240 U CN206402240 U CN 206402240U
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- China
- Prior art keywords
- digital signature
- circuit
- processing unit
- central processing
- clock
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of digital signature secure broadcast device, including central processing unit, power supply circuit, clock circuit, telecommunication circuit, Digital Signature module and voicefrequency circuit, the power end connection of power supply circuit and central processing unit, the clock end connection of clock circuit and central processing unit, one end of telecommunication circuit and the communication ends of central processing unit are connected, its other end is connected with Digital Signature module, the audio output connection of voicefrequency circuit and central processing unit.The utility model is connected using telecommunication circuit with Digital Signature module, the digital signature information of Digital Signature module is sent into central processing unit by telecommunication circuit to analyze and process, driving voicefrequency circuit is broadcasted after central processing unit checking digital signature information, the output of audio is controlled using digital signature authentication, the phenomenons such as mistake is broadcast, unrest is broadcast can be effectively prevented from, and there is provided the safety and reliability of broadcaster.
Description
Technical field
The utility model is related to a kind of digital signature secure broadcast device, belongs to broadcasting equipment technical field.
Background technology
Most of existing broadcaster is made up of central processing unit, audio storage module and audio output circuit, in
The audio-frequency information that central processor is read in audio storage module is broadcasted through audio output circuit.This broadcaster is not set
Broadcast limitation is put, safety and reliability is relatively low, does not utilize broadcast control.
Utility model content
There is provided a kind of digital signature secure broadcast device in order to overcome the shortcomings of prior art presence for the utility model.
The utility model can be by taking following technical scheme to be achieved：
A kind of digital signature secure broadcast device, including central processing unit, power supply circuit, clock circuit, telecommunication circuit, number
The power end connection of word signature blocks and voicefrequency circuit, power supply circuit and central processing unit, clock circuit and central processing unit
Clock end is connected, and one end of telecommunication circuit and the communication ends of central processing unit are connected, and its other end is connected with Digital Signature module,
The audio output connection of voicefrequency circuit and central processing unit.
Preferably, the power supply circuit includes rectifier bridge and voltage-stablizer, the input and external ac power source of rectifier bridge
The input of connection, its input and voltage-stablizer is connected, and the output end of voltage-stablizer is connected with the power end of the central processing unit.
Preferably, the digital signature secure broadcast device also includes memory module, memory module and the centre
Manage the storage end connection of device.
Compared with prior art, the beneficial effects of the utility model are：The utility model utilizes telecommunication circuit and numeral
Signature blocks are connected, and the digital signature information of Digital Signature module is sent at central processing unit analysis by telecommunication circuit
Driving voicefrequency circuit is broadcasted after reason, central processing unit checking digital signature information, and sound is controlled using digital signature authentication
The output of frequency, being effectively prevented from the phenomenons such as mistake is broadcast, unrest is broadcast, there is provided the safety and reliability of broadcaster.
Brief description of the drawings
Fig. 1 is the circuit block diagram of digital signature secure broadcast device of the present utility model；
Fig. 2 is the circuit theory diagrams of central processing unit of the present utility model；
Fig. 3 is the circuit theory diagrams of power supply circuit of the present utility model；
Fig. 4 is the circuit theory diagrams of clock circuit of the present utility model；
Fig. 5 is the circuit theory diagrams of telecommunication circuit of the present utility model.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
As shown in figure 1, a kind of digital signature secure broadcast device includes central processing unit 1, power supply circuit 2, clock circuit
3rd, telecommunication circuit 4, Digital Signature module 5, voicefrequency circuit 6 and memory module 7, the power end of power supply circuit 2 and central processing unit 1
Connection, clock circuit 3 is connected with the clock end of central processing unit 1, one end of telecommunication circuit 4 and the communication ends of central processing unit 1
Connection, its other end is connected with Digital Signature module 5, and voicefrequency circuit 6 is connected with the audio output of central processing unit 1, storage
Module 7 is connected with the storage end of central processing unit 1, wherein, Digital Signature module 5 is provided with digital signature system using conventional
Terminal, for sending digital signature information, voicefrequency circuit 6 is used using conventional audio driven playing circuit, memory module 7
The storage mediums such as conventional flash memory.Power supply circuit 2 provides power supply for whole device, and clock circuit 3 provides the time for whole device
Parameter, the signing messages that Digital Signature module 5 is sent is sent to central processing unit 1,1 pair of central processing unit by telecommunication circuit 4
Signing messages is analyzed, and is driven voicefrequency circuit 6 to broadcast audio-frequency information after checking, is controlled using digital signature authentication
The output of audio, being effectively prevented from the phenomenons such as mistake is broadcast, unrest is broadcast, there is provided the safety and reliability of broadcaster.
Believe as shown in Fig. 2 the master of central processing unit 1 is the digital signature for receiving Digital Signature module 5 by telecommunication circuit 4
Cease and analyze driving voicefrequency circuit 6 after checking and audio-frequency information is broadcasted, it uses STC12C5A16S2 family chips, its
In, pin SCLK is the connection end pin of time circuit 3, and time parameter is provided by clock circuit 3；Pin INT and TXD are communication electricity
The connection end pin on road 4, the signing messages from Digital Signature module is received by telecommunication circuit 4.
As shown in figure 3, power supply circuit 2 includes rectifier bridge D1 and voltage-stablizer U5, wherein voltage-stablizer U5 uses LM2576-
ADJ voltage stabilizing chips, rectifier bridge D1 input is connected with external ac power source, and the input of its input and voltage-stablizer U5 connects
Connect, voltage-stablizer U5 output end is connected with the power end of central processing unit 1, become alternating current by rectifier bridge D1 to pass through after direct current
Voltage-stablizer U1 voltage stabilizings are powered for whole device.
As shown in figure 4, clock circuit 3 mainly provides time parameter for whole device, it uses the serial clocks of DS1302
Chip.
It will receive the digital signature information of Digital Signature module as shown in figure 5, telecommunication circuit 4 is mainly and be sent to centre
Device is managed, it uses MAX3232 sequence of communications chips.
The utility model is described above in association with preferred embodiment, but the utility model is not limited to the above and taken off
The embodiment shown, and the various modifications carried out according to essence of the present utility model, equivalent combinations should be covered.
Claims (3)
1. a kind of digital signature secure broadcast device, it is characterised in that including central processing unit, power supply circuit, clock circuit, logical
Believe circuit, Digital Signature module and voicefrequency circuit, the power end connection of power supply circuit and central processing unit, clock circuit and center
The clock end connection of processor, one end of telecommunication circuit and the communication ends of central processing unit are connected, its other end and digital signature
Module is connected, and the audio output of voicefrequency circuit and central processing unit is connected.
2. the digital signature secure broadcast device described in claim requirement 1, it is characterised in that the power supply circuit includes rectification
Bridge and voltage-stablizer, the input of rectifier bridge are connected with external ac power source, the input connection of its input and voltage-stablizer, voltage stabilizing
The output end of device is connected with the power end of the central processing unit.
3. digital signature secure broadcast device according to claim 1 or 2, it is characterised in that the digital signature is wide safely
Broadcasting device also includes memory module, and memory module is connected with the storage end of the central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425466.7U CN206402240U (en) | 2016-12-23 | 2016-12-23 | digital signature secure broadcast device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425466.7U CN206402240U (en) | 2016-12-23 | 2016-12-23 | digital signature secure broadcast device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206402240U true CN206402240U (en) | 2017-08-11 |
Family
ID=59511258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621425466.7U Expired - Fee Related CN206402240U (en) | 2016-12-23 | 2016-12-23 | digital signature secure broadcast device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206402240U (en) |
-
2016
- 2016-12-23 CN CN201621425466.7U patent/CN206402240U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20181223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |