CN200953555Y - Single-soldier headpiece type radio digital speech communication system - Google Patents
Single-soldier headpiece type radio digital speech communication system Download PDFInfo
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- CN200953555Y CN200953555Y CNU2006200352247U CN200620035224U CN200953555Y CN 200953555 Y CN200953555 Y CN 200953555Y CN U2006200352247 U CNU2006200352247 U CN U2006200352247U CN 200620035224 U CN200620035224 U CN 200620035224U CN 200953555 Y CN200953555 Y CN 200953555Y
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- amplifying circuit
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Abstract
The utility model discloses an individual helmet type wireless digital voice communication system, which belongs to the technical field of wireless digital communication equipment. The utility model comprises a receiving and sending main frame, a machine shell, a coordinated earphone, a microphone, a sending and receiving control switch and a power source component. The main frame is provided with a sending and receiving component; the sending and receiving component is composed of a data processing circuit, a control and conversion circuit, an antenna, a sending circuit, a receiving circuit and a power source management circuit. The utility model fills in the blank of wireless digital secure communication equipment; realize digitalized transmission of space carrier wave and data encryption processing of internal circuit as well as stable and reliable working status, small structure and simple operation. By positioning the utility model on the helmet, it is able to conveniently realize the helmet type secure wireless communication.
Description
Technical field
The utility model relates to a kind of communication equipment, relates in particular to a kind of wireless transmission communication equipment.
Background technology
See the present situation of domestic helmet Worn type communication equipment earlier: the at present domestic producer that can produce and provide helmet talk back equipment seldom, and is and with low content of technology mostly, lacks secret means, poor practicability.Can be divided into following a few class situation on the whole: one, the producer that has adds earphone and microphone device on original helmet, by interconnecting device this device is connected with intercom, this life draws the method for applying arbitrarily limited by the intercom interface, can't carry out the preservation of data; Limit by connected mode, the helmet combines not tight with Communication Equipment, and image appearance is poor; In addition, the intercom volume and weight is bigger than normal, carries inconvenience.They are two years old, the producer that has has also accomplished communication apparatus in the helmet, and finish the structure technological design, but Communication Equipment is with low content of technology, carry out the transmission of signal in the mode of analog-modulated, as long as have a receiver of same modulation system like this, anyone can receive and listen to all Content of communciations of internal system, does not possess confidentiality.They are three years old, other has some producers also from the more advanced Communication Equipment of external import, though can avoid the shortcoming under above-mentioned two kinds of situations to a certain extent, but these equipment all are to come from abroad, cost an arm and a leg, after-sale service does not have guarantee, or the maintenance cost height, makes most of users hang back.
See the situation of external product again: the equipment that external communication class produce market is relevant with helmet communication is still less, quality is uneven, helmet formula talk back equipment in the military systems is not as independently system and an individualism, and is interrelated between it and each system.The problem that exists usually is not carry out data encryption to handle, and complex structure costs an arm and a leg.As introducing product, often be subjected to the restriction of the export of techniques.
Thus, press for the radio digital communication equipment of a kind of perfect in shape and function of research and development, reasonable price in the practice.
The utility model content
According to above-mentioned need of practice, the purpose of this utility model is: a kind of blank that solves present wireless digital secure communication unit is provided, its spatial carrier is the digitlization transmission, internal circuit carries out data encryption and handles individual soldier's helmet formula wireless digital speech communication system that working stability is reliable, structure is small and exquisite, simple to operate.Another purpose of the present utility model is: described individual soldier's helmet formula wireless digital speech communication system is used for the helmet, is suitable for wireless digital secure communication between the groupuscule.
The technical solution of the utility model is: a kind of individual soldier's helmet formula wireless digital speech communication system, comprise that main frame (containing casing) reaches the earphone of supporting connection with it, Mike and transmission receive control switch, also has power supply module, be provided with transmitting-receiving subassembly in the described casing, this transmitting-receiving subassembly comprises data processing circuit, the control transformation circuit, antenna, transtation mission circuit, receiving circuit and electric power management circuit, wherein, transtation mission circuit comprises the pre-amplification circuit of the weak audio signal amplification that Mike is spread out of, the CPU circuit, the transmitting terminal mixting circuit, the transmitting terminal radio frequency amplifying circuit, emission receives change over switch and antenna circuit; Opposite with transtation mission circuit, receiving circuit comprises that antenna circuit, emission receive change over switch, receiving terminal radio frequency amplifying circuit, receiving terminal mixting circuit, CPU circuit, drive amplifying circuit; Be provided with respectively two branch roads that are connected with receiving circuit with transtation mission circuit in the described CPU circuit, wherein, with the pre-amplification circuit of transtation mission circuit is connected in turn A/D converter, audio coding circuit, encrypted circuit, chnnel coding circuit and data modulation circuitry arranged; With the receiving terminal mixting circuit of receiving circuit is connected in turn data demodulation circuit, channel decoding circuit, decrypt circuit, audio decoding circuit and D/A converter arranged; Being provided with frequency synthesizer circuit in the CPU circuit is connected with the receiving terminal mixting circuit with the transmitting terminal mixting circuit respectively.
Transmitting terminal radio frequency amplifying circuit described in the utility model comprises the drive(r) stage amplifying circuit and the power stage amplifying circuit of series connection; Wherein the drive(r) stage amplifying circuit is connected with the transmitting terminal mixting circuit, and the power stage amplifying circuit receives change over switch with emission and is connected.Receiving terminal radio frequency amplifying circuit described in the utility model comprises the one-level amplifying circuit and the second amplifying circuit of series connection; Wherein, the one-level amplifying circuit receives change over switch with emission and is connected, and second amplifying circuit is connected with the receiving terminal mixting circuit.Described antenna circuit comprises band pass filter and antenna.
The operation principle of individual soldier's helmet formula wireless digital speech communication system of the present utility model is as follows:
A. transtation mission circuit: at first the weak audio signal that microphone obtains is amplified by pre-amplification circuit, then under the control of CPU audio signal being carried out sample quantization handles, be that the audio coding circuit carries out encoding process to sampled data, encrypted circuit carries out encryption to the data behind the coding more afterwards, the chnnel coding circuit carries out chnnel coding more afterwards, and audio-frequency information is put into the sendaisle of appointment, next the data modulation circuitry of sendaisle is modulated data, and the conversion of signals after will being transferred by the transmitting terminal frequency mixer again is on specified frequency.And then be that drive(r) stage by the transmitting terminal radio frequency amplifying circuit carries out power amplifier and prepares, the power stage amplifying circuit rises to maximum with signal level then, radiofrequency signal after the amplification is finally launched by antenna by the outer spuious and harmonic signal of antenna circuit filtering band.
B. receiving circuit: opposite with transtation mission circuit, the antenna circuit of receiving circuit filters out the outer spurious signal of band, and receiving terminal one-level amplifying circuit, second amplifying circuit amplify small-signal, have improved the sensitivity of receiving circuit, for demodulator circuit provides safeguard.Signal after the amplification is access in the receiving terminal frequency mixer of CPU circuit with signal mixing, partly the reduction of data of transmitter is become data message at data demodulation circuit again, channel decoding circuit is handled data decode, the decrypt circuit part is decrypted processing to data, data after the deciphering are carried out audio decoder under the control of audio decoding circuit, be audio signal by D/A converting circuit D/A with data conversion again, by driving amplifying circuit voice signal is sent into earphone at last, finish the reception of audio signal and handle.
C. electric power management circuit is responsible for the supply voltage that power supply module provides is transformed into required voltages such as CPU circuit, drive(r) stage amplifying circuit, power stage amplifying circuit, one-level amplifying circuit, second amplifying circuit, pre-amplification circuit, driving amplifying circuit.
D. send and receive control switch, this switch is in accepting state at ordinary times, when sending words, this switch is switched to transmit status.
A kind of helmet that adopts described individual soldier's helmet formula wireless digital speech communication system comprises the helmet and is installed in the holder of the band buckle on the helmet that described individual soldier's helmet formula wireless digital speech communication system is plugged in the buckle of described holder.
The beneficial effects of the utility model are: solved the blank of present wireless digital secure communication unit, its spatial carrier is digitlization transmission, and internal circuit carries out data encryption to be handled, and working stability is reliable, structure is small and exquisite, simple to operate; Described individual soldier's helmet formula wireless digital speech communication system is installed on the helmet, can realizes helmet formula secure radio communication easily.
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Description of drawings
Fig. 1 is the structural representation of the utility model individual soldier helmet formula wireless digital speech communication system;
Fig. 2 is the operation principle schematic diagram of Fig. 1;
Fig. 3 is the structural representation that has the helmet of the utility model individual soldier helmet formula wireless digital speech communication system;
Wherein, Reference numeral is: 1 is the helmet, and 2 is earphone, and 3 is Mike, and 4 is holder, and 5 is casing, and 6 for sending the reception control switch.
Embodiment
As shown in Figure 1 and Figure 2, a kind of individual soldier's helmet formula wireless digital speech communication system, comprise earphone 2, the Mike 3 of casing 5 and supporting connection with it and send and receive control switch 6, also has power supply module, be provided with transmitting-receiving subassembly in the described casing 5, this transmitting-receiving subassembly comprises transtation mission circuit, receiving circuit and electric power management circuit, wherein, transtation mission circuit comprises that pre-amplification circuit, CPU circuit, transmitting terminal mixting circuit, transmitting terminal radio frequency amplifying circuit, the emission of the weak audio signal amplification that Mike is spread out of receive change over switch and antenna circuit; Opposite with transtation mission circuit, receiving circuit comprises that antenna circuit, emission receive change over switch, receiving terminal radio frequency amplifying circuit, receiving terminal mixting circuit, CPU circuit, drive amplifying circuit.Be provided with respectively two branch roads that are connected with receiving circuit with transtation mission circuit in the described CPU circuit, wherein, with the pre-amplification circuit of transtation mission circuit is connected in turn A/D converter, audio coding circuit, encrypted circuit, chnnel coding circuit and data modulation circuitry arranged; With the receiving terminal mixting circuit of receiving circuit is connected in turn data demodulation circuit, channel decoding circuit, decrypt circuit, audio decoding circuit and D/A converter arranged; Being provided with frequency synthesizer circuit in the CPU circuit is connected with the receiving terminal mixting circuit with the transmitting terminal mixting circuit respectively.Described transmitting terminal radio frequency amplifying circuit comprises the drive(r) stage amplifying circuit and the power stage amplifying circuit of series connection; Wherein the drive(r) stage amplifying circuit is connected with the transmitting terminal mixting circuit, and the power stage amplifying circuit receives change over switch with emission and is connected.Described receiving terminal radio frequency amplifying circuit comprises the one-level amplifying circuit and the second amplifying circuit of series connection; Wherein, the one-level amplifying circuit receives change over switch with emission and is connected, and second amplifying circuit is connected with the receiving terminal mixting circuit.Described antenna circuit comprises band pass filter and antenna.
As shown in Figure 3, a kind of helmet that adopts individual soldier's helmet formula wireless digital speech communication system, comprise the helmet 1 and be installed in the holder 4 of the band buckle on the helmet 1, described individual soldier's helmet formula wireless digital speech communication system is plugged in the buckle of described holder 4, wherein, the structure of individual soldier's helmet formula wireless digital speech communication system such as embodiment 1.
Claims (5)
1, a kind of individual soldier's helmet formula wireless digital speech communication system, comprise that the main frame that contains casing (5) reaches the earphone of supporting connection (2) with it, microphone (3) and transmission receive control switch (6), also has power supply module, it is characterized in that: described casing is provided with transmitting-receiving subassembly in (5), this transmitting-receiving subassembly comprises data processing circuit, the control transformation circuit, antenna, transtation mission circuit, receiving circuit and electric power management circuit, wherein, transtation mission circuit comprises the pre-amplification circuit of the weak audio signal amplification that Mike is spread out of, the CPU circuit, the transmitting terminal mixting circuit, the transmitting terminal radio frequency amplifying circuit, emission receives change over switch and antenna circuit; Opposite with transtation mission circuit, receiving circuit comprises that antenna circuit, emission receive change over switch, receiving terminal radio frequency amplifying circuit, receiving terminal mixting circuit, CPU circuit, drive amplifying circuit; Be provided with respectively two branch roads that are connected with receiving circuit with transtation mission circuit in the described CPU circuit, wherein, with the pre-amplification circuit of transtation mission circuit is connected in turn A/D converter, audio coding circuit, encrypted circuit, chnnel coding circuit and data modulation circuitry arranged; With the receiving terminal mixting circuit of receiving circuit is connected in turn data demodulation circuit, channel decoding circuit, decrypt circuit, audio decoding circuit and D/A converter arranged; Being provided with frequency synthesizer circuit in the CPU circuit is connected with the receiving terminal mixting circuit with the transmitting terminal mixting circuit respectively.
2, individual soldier's helmet formula wireless digital speech communication system according to claim 1, it is characterized in that: described transmitting terminal radio frequency amplifying circuit comprises the drive(r) stage amplifying circuit and the power stage amplifying circuit of series connection; Wherein the drive(r) stage amplifying circuit is connected with the transmitting terminal mixting circuit, and the power stage amplifying circuit receives change over switch with emission and is connected.
3, individual soldier's helmet formula wireless digital speech communication system according to claim 1, it is characterized in that: described receiving terminal radio frequency amplifying circuit comprises the one-level amplifying circuit and the second amplifying circuit of series connection; Wherein, the one-level amplifying circuit receives change over switch with emission and is connected, and second amplifying circuit is connected with the receiving terminal mixting circuit.
4, individual soldier's helmet formula wireless digital speech communication system according to claim 1, it is characterized in that: described antenna circuit comprises band pass filter and antenna.
5, a kind of helmet that adopts claim 1 or 2 or 3 or 4 described individual soldier's helmet formula wireless digital speech communication systems, comprise the helmet (1) and be installed in the holder (4) of the band buckle on the helmet (1), it is characterized in that: described individual soldier's helmet formula wireless digital speech communication system is plugged in the buckle of described holder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200352247U CN200953555Y (en) | 2006-08-09 | 2006-08-09 | Single-soldier headpiece type radio digital speech communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200352247U CN200953555Y (en) | 2006-08-09 | 2006-08-09 | Single-soldier headpiece type radio digital speech communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953555Y true CN200953555Y (en) | 2007-09-26 |
Family
ID=38811854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200352247U Expired - Fee Related CN200953555Y (en) | 2006-08-09 | 2006-08-09 | Single-soldier headpiece type radio digital speech communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953555Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357291A (en) * | 2016-08-29 | 2017-01-25 | 苏州倍声声学技术有限公司 | Solar-charging waterproof interphone for military and police communication |
-
2006
- 2006-08-09 CN CNU2006200352247U patent/CN200953555Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357291A (en) * | 2016-08-29 | 2017-01-25 | 苏州倍声声学技术有限公司 | Solar-charging waterproof interphone for military and police communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070926 Termination date: 20100809 |