CN109596111A - A kind of total station for passing on a message - Google Patents
A kind of total station for passing on a message Download PDFInfo
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- CN109596111A CN109596111A CN201811477136.6A CN201811477136A CN109596111A CN 109596111 A CN109596111 A CN 109596111A CN 201811477136 A CN201811477136 A CN 201811477136A CN 109596111 A CN109596111 A CN 109596111A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of total stations for passing on a message.The total station for passing on a message includes: pass on a message emitter, total station host side, reception device of passing on a message and total station prism end；Emitter of passing on a message is arranged on the total station host of total station host side, and is electrically connected with total station host；Reception device of passing on a message is arranged in the mirror cover of the total station prism at total station prism end；Emitter of passing on a message includes sound pick-up, transmitting terminal audio amplifier circuit, transmitting Signal Matching circuit and transmitting antenna；Reception device of passing on a message includes receiving antenna, receives Signal Matching circuit, receiving end audio amplifier circuit and loudspeaker.Total station structure for passing on a message of the invention is simple, it is practical, can be realized short range transmission, and power dissipation is avoided in transmission process.
Description
Technical field
The present invention relates to total station instrument technique fields, more particularly to a kind of total station for passing on a message.
Background technique
Currently, generalling use intercom realizes function of passing on a message, the use due to national air station administration committee to frequency
Divide, it is specified that different industry is using corresponding frequency range, it therefore, be to locality when using intercom
Wireless Management Committee application frequency point, it is relatively complicated；And intercom is in use, due to different brands producer
Intercom, factory frequency point and subsonics encryption be it is different, therefore, to realize that call uses mutually, just must advanced row write frequently
Operation, and if frequency not to or frequency do not have to for a long time, it is often necessary to readjust, use also complex.It is existing
Some intercoms include public's intercom and commercial intercom, and the power of the power ratio commercialization intercom of public's intercom is small, quotient
Be 4w~5W with the power bracket of intercom, using when need to apply, public's intercom can be used at will, but its power
It will cause power dissipation when the distance of propagation is smaller not less than 0.5W.It would therefore be highly desirable to which a kind of structure is simple, is convenient for closely
Transmission and the device appearance with function of passing on a message low in energy consumption.
Summary of the invention
Based on this, it is necessary to the total station for passing on a message that a kind of structure is simple, practical is provided, to realize closely
Transmission, and power dissipation is avoided in transmission process.
To achieve the above object, the present invention provides following schemes:
A kind of total station for passing on a message, comprising: emitter of passing on a message, total station host side, reception device of passing on a message and complete
It stands instrument prism end；
The emitter of passing on a message is arranged on the total station host of the total station host side, and with the total station master
Mechatronics；The reception device of passing on a message is arranged in the mirror cover of the total station prism at the total station prism end；
The emitter of passing on a message includes sound pick-up, transmitting terminal audio amplifier circuit, transmitting Signal Matching circuit and transmitting
Antenna；The sound pick-up is for generating transmitting audio signal；The transmitting terminal audio amplifier circuit respectively with the sound pick-up and
The transmitting Signal Matching circuit connection obtains transmitting audio for amplifying to the transmitting audio signal received
Amplified signal；The transmitting Signal Matching circuit is connect with the transmitting antenna, for putting to the transmitting audio received
Big signal is modulated, and is obtained transmitting terminal radiofrequency signal, and carry out impedance transformation to the transmitting terminal radiofrequency signal, is emitted
Low-resistance radiofrequency signal is held, to realize that the impedance with the transmitting antenna matches；The transmitting antenna is used for the transmitting terminal
Low-resistance radiofrequency signal is sent to the reception device of passing on a message；
The reception device of passing on a message includes receiving antenna, receives Signal Matching circuit, receiving end audio amplifier circuit and expansion
Sound device；The receiving antenna is used to receive the transmitting terminal low-resistance radiofrequency signal of the emitter transmission of passing on a message；The reception letter
Number match circuit is connect with the receiving antenna and the receiving end audio amplifier circuit respectively, for the transmitting terminal low-resistance
Radiofrequency signal is converted and is demodulated, and obtains receiving audio signal；The receiving end audio amplifier circuit and the loudspeaker connect
It connects, the audio signal for being amplified to the reception audio signal received and impedance transformation, after being converted；It is described to amplify
Device is used to generate sound according to the audio signal after the conversion, and the sound transmission is gone out.
Optionally, the transmitting terminal audio amplifier circuit include: triode Q1, triode Q2, triode Q3, resistance R1,
Resistance R2, slide rheostat R3, resistance R4, resistance R5, resistance R6, resistance R7, capacitor C1, capacitor C2, capacitor C3, capacitor C4,
Capacitor C5, capacitor C6, capacitor C7, capacitor C8 and inductance L1；
The base stage of the triode Q1 respectively with the resistance R1, the resistance R2, the capacitor C1 and the capacitor C2
One end connection, the other end of the other end of the resistance R2 and the capacitor C2 connects with the collector of the triode Q1
Connect, the other end of the resistance R1 is connect with one end of the capacitor C3, the other end of the capacitor C3 respectively with the sliding
The sliding end of rheostat R3 is connected with one end of the loudspeaker, the other end of the other end of the loudspeaker, the capacitor C1
It is connect with the cathode of transmitting terminal power supply with the emitter of the triode Q1；
The base stage of the triode Q2 respectively with the collector of the triode Q1, one end of the resistance R4 and the electricity
Hold one end connection of C4, the collector of the triode Q2 is connect with one end of the inductance L1, the other end of the inductance L1
It is connect by switching with the anode of the transmitting terminal power supply, the other end of the inductance L1 also connects with one end of the resistance R5
Connect, the other end of the resistance R5 respectively with the other end of the resistance R4, one end of the resistance R6, the capacitor C5 one
End connection, the other end of the resistance R6 are connect with one end of one end of the capacitor C6, the capacitor C7 respectively, the capacitor
The other end of C6 is connect with a fixing end of the slide rheostat R3, another fixing end of the slide rheostat R3,
The other end of the capacitor C7, the other end of the capacitor C4, the capacitor C5 the other end with the transmitting terminal power supply
Cathode connection；The collector of the triode Q2 also with the transmitting Signal Matching circuit connection；
The base stage of the triode Q3 is connect with the emitter of the triode Q2, the collector of the triode Q3 and institute
State the collector connection of triode Q2, the emitter of triode Q3 one end with the resistance R7 and the capacitor C8 respectively
Connection, the other end of the resistance R7, the capacitor C8 the other end connect respectively with the cathode of the transmitting terminal power supply.
Optionally, the transmitting Signal Matching circuit includes: triode Q4, resistance R8, resistance R9, resistance R10, capacitor
C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, capacitor C14, resonator S, transmitting terminal radio-frequency transformer and inductance L4；
The base stage of the triode Q4 is connect with one end of the resistance R8, the resistance R9 and the capacitor C9 respectively,
The other end of the capacitor C9 is connect with one end of the resonator S, and the other end of the resistance R9 and the resonator S's is another
One end is connect with the cathode of the transmitting terminal power supply, the emitter of the triode Q4 respectively with the resistance R10, the electricity
Hold C10 to connect with one end of the capacitor C11, the other end of the resistance R10 and the capacitor C10 are electric with the transmitting terminal
The cathode in source connects, the collector of the triode Q4 respectively with the other end of the capacitor C11, the transmitting terminal radio frequency transformation
One end of the secondary coil L3 of device connects, one end of the primary coil L2 of the transmitting terminal radio-frequency transformer and transmitting terminal electricity
The cathode in source connects, and the other end of the primary coil L2 amplifies with one end of the capacitor C12, the transmitting terminal audio respectively
Circuit is connected with one end of the inductance L4, and the other end of the inductance L4 is connect with the transmitting antenna, the resistance R8's
The other end, the other end of the secondary coil L3, one end of the capacitor C13 and the capacitor C14 one end with the hair
Penetrate end audio amplifier circuit connection, the other end of the capacitor C12, the capacitor C13 and the capacitor C14 with the transmitting
Hold the cathode connection of power supply.
Optionally, the reception Signal Matching circuit includes: triode Q5, resistance R11, resistance R12, resistance R13, resistance
R14, capacitor C15, capacitor C16, capacitor C17, capacitor C18, capacitor C19, capacitor C20, receiving end radio-frequency transformer and inductance L7；
The base stage of the triode Q5 connects with one end of the resistance R11, the resistance R12 and the capacitor C15 respectively
It connects, the other end of the resistance R12 and the capacitor C15 are connect with the cathode of receiving end power supply, the hair of the triode Q5
Emitter-base bandgap grading is connect with one end of the resistance R13, the capacitor C16 and the capacitor C17 respectively, the resistance R13, described
The other end of capacitor C17 is connect with one end of the resistance R14, and one end of the resistance R14 also connects with the capacitor C18
It connecing, the other end of the other end of the resistance R14 and the capacitance C18 are connect with the cathode of the receiving end power supply,
The collector of the triode Q5 secondary coil with the other end of the capacitor C16, the receiving end radio-frequency transformer respectively
One end of L5 connects, and the cathode of one end of the primary coil L6 of the receiving end radio-frequency transformer and the receiving end power supply connects
Connect, the other end of the primary coil L6 respectively with one end of the capacitor C19, the receiving end audio amplifier circuit and described
One end of inductance L7 connects, and the other end of the inductance L7 is connect with the receiving antenna, the other end of the resistance R11, institute
One end of the other end and the capacitor C20 of stating secondary coil L5 is connect with the receiving end audio amplifier circuit, the electricity
The other end for holding the C19 and capacitor C20 is connect with the cathode of the receiving end power supply.
Optionally, the receiving end audio amplifier circuit include: triode Q6, triode Q7, triode Q8, resistance 15,
Resistance 16, slide rheostat R17, resistance 18, resistance 19, resistance 20, resistance 21, capacitor C21, capacitor C22, capacitor C23, capacitor
C24, capacitor C25, capacitor C26, capacitor C27, capacitor C28 and impedance transformation transformer；
The base stage of the triode Q6 respectively with the resistance 15, the resistance R16, the capacitor C21 and the capacitor
One end of C22 connects, current collection of the other end of the other end of the resistance R16 and the capacitor C22 with the triode Q6
Pole connection, the other end of the resistance R15 connect with one end of the capacitor C23, the other end of the capacitor C23 respectively with institute
State the sliding end connection of slide rheostat R17, the emitter of the other end of the capacitor 21 and the triode Q6 with reception
Hold the cathode connection of power supply；
The base stage of the triode Q7 respectively with the collector of the triode Q6, one end of the resistance R18 and described
One end of capacitor C24 connects, one end of the secondary coil L8 of the collector of the triode Q7 and the impedance transformation transformer
The other end of connection, the secondary coil L8 is connect by switch with the anode of the receiving end power supply, and the impedance transformation becomes
One end of the primary coil L9 of depressor is connect with the cathode of the receiving end power supply, the other end of the primary coil L9 with it is described
One end of loudspeaker connects, and the other end of the loudspeaker is connect with the cathode of the receiving end power supply, the secondary coil L8
The other end also connect with one end of the resistance R19, the other end of the resistance R19 is another with the resistance R18 respectively
End, one end of the resistance R20, the capacitor 25 one end connection, the other end of the resistance R20 respectively with the capacitor
One end connection of one end of C26, the capacitor C27, one of the other end of the capacitor C26 and the slide rheostat R17
Fixing end connection, another fixing end of the slide rheostat R17, the other end of the capacitor C27, the capacitor C24
The other end, the capacitor C25 the other end connect with the cathode of the receiving end power supply；
The base stage of the triode Q8 is connect with the emitter of the triode Q7, the collector of the triode Q8 and institute
State triode Q7 collector connection, the emitter of the triode Q8 respectively with the resistance R21 and capacitor C28 one
End connection, the other end cathode with receiving end power supply respectively of the other end of the resistance R21, the capacitor C28
Connection.
Optionally, the resonator S is quartz-crystal resonator.
Optionally, the frequency of the resonator S is 27MHz.
Optionally, the Standard resistance range of the slide rheostat R3 is 0-10k Ω.
Optionally, the Standard resistance range of the slide rheostat R17 is 0-10k Ω.
Compared with prior art, the beneficial effects of the present invention are:
The invention proposes a kind of total stations for passing on a message, comprising: emitter of passing on a message, is passed on a message at total station host side
Reception device and total station prism end；Emitter of passing on a message is arranged on the total station host of total station host side, and and whole station
The electrical connection of instrument host；Reception device of passing on a message is arranged in the mirror cover of the total station prism at total station prism end；It passes on a message emitter
Including sound pick-up, transmitting terminal audio amplifier circuit, transmitting Signal Matching circuit and transmitting antenna；Reception device of passing on a message includes receiving
Antenna receives Signal Matching circuit, receiving end audio amplifier circuit and loudspeaker.The total station for being used to pass on a message can be used for learning
School measure teaching can realize that student is short-range in application, power is only 0.3W in the distance range of 200m~300m
While measurement is passed on a message, the waste of power is avoided.Emitter of passing on a message is arranged on total station host, and circuit structure is simple, hair
It penetrates and holds power supply that can directly adopt the power supply power supply on host；Reception device of passing on a message is arranged in the mirror cover of total station prism, both simple
It is single and practical, it is able to satisfy the intercommunication requirement of student instruction measurement completely, the total station structure for being used to pass on a message is simple, practicability
By force.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the total station for passing on a message of the embodiment of the present invention；
Fig. 2 is that the embodiment of the present invention is passed on a message the circuit diagram of emitter；
Fig. 3 is that the embodiment of the present invention is passed on a message the circuit diagram of reception device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is a kind of structural schematic diagram of the total station for passing on a message of the embodiment of the present invention.
Referring to Fig. 1, the total station for passing on a message of embodiment, comprising: emitter 1 of passing on a message, passes total station host side 2
Talk about reception device 3 and total station prism end 4；The total station master of the total station host side 2 is arranged in the emitter 1 of passing on a message
On machine 5, and it is electrically connected with the total station host 5；The complete of the total station prism end 4 is arranged in the reception device 3 of passing on a message
It stands in the mirror cover of instrument prism 6.
The emitter 1 of passing on a message includes sound pick-up 7, transmitting terminal audio amplifier circuit 8, transmitting 9 and of Signal Matching circuit
Transmitting antenna 10；The sound pick-up 7 is for generating transmitting audio signal；The transmitting terminal audio amplifier circuit 8 respectively with it is described
Sound pick-up 7 and the transmitting Signal Matching circuit 9 connection, for amplifying to the transmitting audio signal received, obtain
To transmitting audio amplification signal；The transmitting Signal Matching circuit 9 is connect with the transmitting antenna 10, for the institute received
It states transmitting audio amplification signal to be modulated, obtains transmitting terminal radiofrequency signal, and impedance is carried out to the transmitting terminal radiofrequency signal
Conversion, obtains transmitting terminal low-resistance radiofrequency signal, to realize that the impedance with the transmitting antenna 10 matches；The transmitting antenna 10
For the transmitting terminal low-resistance radiofrequency signal to be sent to the reception device 3 of passing on a message.
The reception device 3 of passing on a message includes receiving antenna 11, receives Signal Matching circuit 12, receiving end audio amplifier circuit
13 and loudspeaker 14；The receiving antenna 11 is used to receive the transmitting terminal low-resistance radiofrequency signal of the transmission of emitter 1 of passing on a message；
The reception Signal Matching circuit 12 is connect with the receiving antenna 11 and the receiving end audio amplifier circuit 13 respectively, is used for
The transmitting terminal low-resistance radiofrequency signal is converted and demodulated, obtains receiving audio signal；The receiving end audio amplification electricity
Road 13 is connect with the loudspeaker 14, for amplifying to the reception audio signal received and impedance transformation, is converted
Audio signal afterwards；The loudspeaker 14 is used to generate sound according to the audio signal after the conversion, and the sound is passed
Broadcast is gone.
Fig. 2 is that the embodiment of the present invention is passed on a message the circuit diagram of emitter.Referring to fig. 2, the transmitting terminal audio amplification
Circuit 8 includes: triode Q1, triode Q2, triode Q3, resistance R1, resistance R2, slide rheostat R3, resistance R4, resistance
R5, resistance R6, resistance R7, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8 and electricity
Feel L1.In the present embodiment, the resistance R1, the resistance R2, the resistance R4, the resistance R5, the resistance R6, the electricity
Hindering the corresponding resistance value of R7 is respectively 3K9,1M, 5K8,220R, 4K7,100R；The capacitor C1, the capacitor C2, the capacitor
C3, the capacitor C4, the capacitor C5, the capacitor C6, the capacitor C7, the corresponding resistance value of the capacitor C8 be respectively 4n7,
220p、39n、22n、100u、0.47u、4n7、33u。
The base stage of the triode Q1 respectively with the resistance R1, the resistance R2, the capacitor C1 and the capacitor C2
One end connection, the other end of the other end of the resistance R2 and the capacitor C2 connects with the collector of the triode Q1
Connect, the other end of the resistance R1 is connect with one end of the capacitor C3, the other end of the capacitor C3 respectively with the sliding
The sliding end of rheostat R3 is connected with one end of the loudspeaker 14, the other end of the loudspeaker 14, the capacitor C1 it is another
The emitter of one end and the triode Q1 are connect with the cathode of transmitting terminal power supply.
The base stage of the triode Q2 respectively with the collector of the triode Q1, one end of the resistance R4 and the electricity
Hold one end connection of C4, the collector of the triode Q2 is connect with one end of the inductance L1, the other end of the inductance L1
It is connect by switching with the anode of the transmitting terminal power supply, the other end of the inductance L1 also connects with one end of the resistance R5
Connect, the other end of the resistance R5 respectively with the other end of the resistance R4, one end of the resistance R6, the capacitor C5 one
End connection, the other end of the resistance R6 are connect with one end of one end of the capacitor C6, the capacitor C7 respectively, the capacitor
The other end of C6 is connect with a fixing end of the slide rheostat R3, another fixing end of the slide rheostat R3,
The other end of the capacitor C7, the other end of the capacitor C4, the capacitor C5 the other end with the transmitting terminal power supply
Cathode connection；The collector of the triode Q2 is also connect with the transmitting Signal Matching circuit 9.
The base stage of the triode Q3 is connect with the emitter of the triode Q2, the collector of the triode Q3 and institute
State the collector connection of triode Q2, the emitter of triode Q3 one end with the resistance R7 and the capacitor C8 respectively
Connection, the other end of the resistance R7, the capacitor C8 the other end connect respectively with the cathode of the transmitting terminal power supply.
The transmitting Signal Matching circuit 9 includes: triode Q4, resistance R8, resistance R9, resistance R10, capacitor C9, capacitor
C10, capacitor C11, capacitor C12, capacitor C13, capacitor C14, resonator S, transmitting terminal radio-frequency transformer and inductance L4.The present embodiment
In, the resistance R8, the resistance R9, the corresponding resistance value of the resistance R10 are respectively 33K, 56R, 56R；The capacitor C9, institute
State capacitor C10, the capacitor C11, the capacitor C12, the capacitor C13, the corresponding capacitance of the capacitor C14 be respectively 39n,
82p,33p,15p,10n,22n；The transmitting terminal radio-frequency transformer is made of primary coil L2 and secondary coil L3, the primary
The number of turns of coil L2 is 2 circles, and the number of turns of the secondary coil L3 is 9 circles.
The base stage of the triode Q4 is connect with one end of the resistance R8, the resistance R9 and the capacitor C9 respectively,
The other end of the capacitor C9 is connect with one end of the resonator S, and the other end of the resistance R9 and the resonator S's is another
One end is connect with the cathode of the transmitting terminal power supply, the emitter of the triode Q4 respectively with the resistance R10, the electricity
Hold C10 to connect with one end of the capacitor C11, the other end of the resistance R10 and the capacitor C10 are electric with the transmitting terminal
The cathode in source connects, the collector of the triode Q4 respectively with the other end of the capacitor C11, the transmitting terminal radio frequency transformation
One end of the secondary coil L3 of device connects, one end of the primary coil L2 of the transmitting terminal radio-frequency transformer and transmitting terminal electricity
The cathode in source connects, and the other end of the primary coil L2 amplifies with one end of the capacitor C12, the transmitting terminal audio respectively
Circuit 8 is connected with one end of the inductance L4, and the other end of the inductance L4 is connect with the transmitting antenna 10, the resistance R8
The other end, the other end of the secondary coil L3, one end of the capacitor C13 and the capacitor C14 one end with it is described
Transmitting terminal audio amplifier circuit 8 connect, the other end of the capacitor C12, the capacitor C13 and the capacitor C14 with it is described
The cathode of transmitting terminal power supply connects.
Fig. 3 is that the embodiment of the present invention is passed on a message the circuit diagram of reception device.Referring to Fig. 3, the reception Signal Matching electricity
Road 12 includes: triode Q5, resistance R11, resistance R12, resistance R13, resistance R14, capacitor C15, capacitor C16, capacitor C17, electricity
Hold C18, capacitor C19, capacitor C20, receiving end radio-frequency transformer and inductance L7.In the present embodiment, the resistance R11, the electricity
Hindering R12, the resistance R13, the corresponding resistance value of the resistance R14 is respectively 33K, 56R, 56R；The capacitor C15, the capacitor
C16, the capacitor C17, the capacitor C18, the capacitor C19, the corresponding capacitance of the capacitor C20 be respectively 39n, 33p,
82p,82p,15p,10n；The receiving end radio-frequency transformer includes primary coil L6 and secondary coil L5, the primary coil L6
The number of turns be 2 circles, the number of turns of the secondary coil L5 is 9 circles.
The base stage of the triode Q5 connects with one end of the resistance R11, the resistance R12 and the capacitor C15 respectively
It connects, the other end of the resistance R12 and the capacitor C15 are connect with the cathode of receiving end power supply, the hair of the triode Q5
Emitter-base bandgap grading is connect with one end of the resistance R13, the capacitor C16 and the capacitor C17 respectively, the resistance R13, described
The other end of capacitor C17 is connect with one end of the resistance R14, and one end of the resistance R14 also connects with the capacitor C18
It connecing, the other end of the other end of the resistance R14 and the capacitance C18 are connect with the cathode of the receiving end power supply,
The collector of the triode Q5 secondary coil with the other end of the capacitor C16, the receiving end radio-frequency transformer respectively
One end of L5 connects, and the cathode of one end of the primary coil L6 of the receiving end radio-frequency transformer and the receiving end power supply connects
Connect, the other end of the primary coil L6 respectively with one end of the capacitor C19, the receiving end audio amplifier circuit 13 and institute
One end connection of inductance L7 is stated, the other end of the inductance L7 is connect with the receiving antenna 11, and the resistance R11's is another
The one end at end, the other end of the secondary coil L5 and the capacitor C20 is connect with the receiving end audio amplifier circuit 13,
The other end of the capacitor C19 and the capacitor C20 are connect with the cathode of the receiving end power supply.
The receiving end audio amplifier circuit 13 includes: triode Q6, triode Q7, triode Q8, resistance 15, resistance
16, slide rheostat R17, resistance 18, resistance 19, resistance 20, resistance 21, capacitor C21, capacitor C22, capacitor C23, capacitor C24,
Capacitor C25, capacitor C26, capacitor C27, capacitor C28 and impedance transformation transformer.In the present embodiment, the resistance 15, the electricity
Resistance 16, the resistance 18, the resistance 19, the resistance 20, the corresponding resistance value of the resistance 21 be respectively 3K9,1M, 5K8,
220R,4K7,100R；The capacitor C21, the capacitor C22, the capacitor C23, the capacitor C24, the capacitor C25, institute
State capacitor C26, the capacitor C27, the corresponding resistance value of the capacitor C28 be respectively 4n7,220p, 39n, 22n, 100u, 0.47u,
4n7、33u。
The base stage of the triode Q6 respectively with the resistance 15, the resistance R16, the capacitor C21 and the capacitor
One end of C22 connects, current collection of the other end of the other end of the resistance R16 and the capacitor C22 with the triode Q6
Pole connection, the other end of the resistance R15 connect with one end of the capacitor C23, the other end of the capacitor C23 respectively with institute
State the sliding end connection of slide rheostat R17, the emitter of the other end of the capacitor 21 and the triode Q6 with reception
Hold the cathode connection of power supply.
The base stage of the triode Q7 respectively with the collector of the triode Q6, one end of the resistance R18 and described
One end of capacitor C24 connects, one end of the secondary coil L8 of the collector of the triode Q7 and the impedance transformation transformer
The other end of connection, the secondary coil L8 is connect by switch with the anode of the receiving end power supply, and the impedance transformation becomes
One end of the primary coil L9 of depressor is connect with the cathode of the receiving end power supply, the other end of the primary coil L9 with it is described
One end of loudspeaker 14 connects, and the other end of the loudspeaker 14 is connect with the cathode of the receiving end power supply, the secondary wire
The other end of circle L8 is also connect with one end of the resistance R19, and the other end of the resistance R19 is respectively with the resistance R18's
The other end, one end of the resistance R20, the capacitor 25 one end connection, the other end of the resistance R20 respectively with the electricity
Hold one end of C26, one end connection of the capacitor C27, the other end of the capacitor C26 and the one of the slide rheostat R17
A fixing end connection, another fixing end of the slide rheostat R17, the other end of the capacitor C27, the capacitor C24
The other end, the capacitor C25 the other end connect with the cathode of the receiving end power supply.
The base stage of the triode Q8 is connect with the emitter of the triode Q7, the collector of the triode Q8 and institute
State triode Q7 collector connection, the emitter of the triode Q8 respectively with the resistance R21 and capacitor C28 one
End connection, the other end cathode with receiving end power supply respectively of the other end of the resistance R21, the capacitor C28
Connection.
In the present embodiment, the triode Q1, the triode Q2, the triode Q3, the triode Q4, described three
Pole pipe Q5, the triode Q6, the triode Q7, the technical indicator of the triode Q8 are identical.
As an alternative embodiment, the resonator S is quartz-crystal resonator；The frequency of the resonator S
For 27MHz.
As an alternative embodiment, the Standard resistance range of the slide rheostat R3 is 0-10k Ω；The sliding becomes
The Standard resistance range for hindering device R17 is 0-10k Ω.
The working principle of the total station for passing on a message of the present embodiment are as follows: emitter 1 of passing on a message uses 9 volts of power supply,
Personnel at reception device of passing on a message 3, which need to only receive language and the movement to be taken after hearing is made a gesture, allows other side to know,
Personnel at reception device of passing on a message 3 do not have to speech, then reception device of passing on a message 3 is not required to emission function, reduces the complexity of circuit.It passes
Talk about the concrete operating principle of emitter 1 are as follows: sound pick-up 7 generates audio signal and is transmitted to by the amplification of Q1, Q2, Q3 amplifying circuit
Q4, Q4 current collection best emitter-base bandgap grading have 33pF capacitor to generate oscillation, and base stage has 27MHz resonator to generate resonance, and the power supply of Q4 is by emitting
The coil of end-fire frequency power transformer provides, and Q4 is modulated the audio signal received, obtains radiofrequency signal, emitted end-fire frequency
Transformer carries out low-resistance conversion to radiofrequency signal, and after realizing that the impedance with transmitting antenna 10 matches, radiofrequency signal is sent out
It goes.The concrete operating principle of reception device of passing on a message 3 are as follows: receiving antenna 11 receive radiofrequency signal, by with 11 signal of receiving antenna
The primary coil L6 and capacitor C19 resonance matched is received, and filters out signal, is coupled to secondary coil L5 through coil, then via base
The Q5 radio frequency of pole ground connection, which is amplified to, penetrates grade output, and using the diode detection characteristic penetrated between grade and base stage, demodulates audio letter
Number；After the amplification of Q6, Q7, Q8 audio, is converted using transformer impedance to push loudspeaker 14 to load, realize connecing for sound
It receives.
The total station structure for passing on a message in the present embodiment is simple, it is practical, can be realized short range transmission, and
Power dissipation is avoided in transmission process.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (9)
1. a kind of total station for passing on a message characterized by comprising emitter of passing on a message, total station host side, reception of passing on a message
Device and total station prism end；
The emitter of passing on a message is arranged on the total station host of the total station host side, and electric with the total station host
Connection；The reception device of passing on a message is arranged in the mirror cover of the total station prism at the total station prism end；
The emitter of passing on a message includes sound pick-up, transmitting terminal audio amplifier circuit, transmitting Signal Matching circuit and transmitting antenna；
The sound pick-up is for generating transmitting audio signal；The transmitting terminal audio amplifier circuit respectively with the sound pick-up and the hair
Signal Matching circuit connection is penetrated, for amplifying to the transmitting audio signal received, obtains transmitting audio amplification letter
Number；The transmitting Signal Matching circuit is connect with the transmitting antenna, for the transmitting audio amplification signal received
It is modulated, obtains transmitting terminal radiofrequency signal, and impedance transformation is carried out to the transmitting terminal radiofrequency signal, obtain transmitting terminal low-resistance
Radiofrequency signal, to realize that the impedance with the transmitting antenna matches；The transmitting antenna is for penetrating the transmitting terminal low-resistance
Frequency signal is sent to the reception device of passing on a message；
The reception device of passing on a message includes receiving antenna, receives Signal Matching circuit, receiving end audio amplifier circuit and loudspeaker；
The receiving antenna is used to receive the transmitting terminal low-resistance radiofrequency signal of the emitter transmission of passing on a message；The reception Signal Matching
Circuit is connect with the receiving antenna and the receiving end audio amplifier circuit respectively, for believing the transmitting terminal low-resistance radio frequency
It number is converted and is demodulated, obtain receiving audio signal；The receiving end audio amplifier circuit is connect with the loudspeaker, is used for
The reception audio signal received is amplified and impedance transformation, the audio signal after being converted；The loudspeaker is used for
Sound is generated according to the audio signal after the conversion, and the sound transmission is gone out.
2. a kind of total station for passing on a message according to claim 1, which is characterized in that the transmitting terminal audio amplification electricity
Road includes: triode Q1, triode Q2, triode Q3, resistance R1, resistance R2, slide rheostat R3, resistance R4, resistance R5, electricity
Hinder R6, resistance R7, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8 and inductance L1；
The base stage of the triode Q1 respectively with the resistance R1, the resistance R2, the capacitor C1 and the capacitor C2 one
The other end of end connection, the other end of the resistance R2 and the capacitor C2 are connect with the collector of the triode Q1, institute
The other end for stating resistance R1 is connect with one end of the capacitor C3, the other end of the capacitor C3 respectively with the slide rheostat
The sliding end of R3 is connected with one end of the loudspeaker, the other end of the loudspeaker, the other end of the capacitor C1 and described
The emitter of triode Q1 is connect with the cathode of transmitting terminal power supply；
The base stage of the triode Q2 respectively with the collector of the triode Q1, one end of the resistance R4 and the capacitor C4
One end connection, the collector of the triode Q2 connect with one end of the inductance L1, and the other end of the inductance L1 passes through
It switchs and is connect with the anode of the transmitting terminal power supply, the other end of the inductance L1 is also connect with one end of the resistance R5, institute
The other end for stating resistance R5 connects with one end of the other end of the resistance R4, one end of the resistance R6, the capacitor C5 respectively
It connects, the other end of the resistance R6 is connect with one end of one end of the capacitor C6, the capacitor C7 respectively, the capacitor C6's
The other end is connect with a fixing end of the slide rheostat R3, another fixing end of the slide rheostat R3, described
The other end of capacitor C7, the other end of the capacitor C4, the capacitor C5 cathode of the other end with the transmitting terminal power supply
Connection；The collector of the triode Q2 also with the transmitting Signal Matching circuit connection；
The base stage of the triode Q3 is connect with the emitter of the triode Q2, the collector of the triode Q3 and described three
The collector connection of grade pipe Q2, the emitter of the triode Q3 connect with one end of the resistance R7 and the capacitor C8 respectively
Connect, the other end of the resistance R7, the capacitor C8 the other end connect respectively with the cathode of the transmitting terminal power supply.
3. a kind of total station for passing on a message according to claim 1, which is characterized in that the transmitting Signal Matching circuit
It include: triode Q4, resistance R8, resistance R9, resistance R10, capacitor C9, capacitor C10, capacitor C11, capacitor C12, capacitor C13, electricity
Hold C14, resonator S, transmitting terminal radio-frequency transformer and inductance L4；
The base stage of the triode Q4 is connect with one end of the resistance R8, the resistance R9 and the capacitor C9 respectively, described
The other end of capacitor C9 is connect with one end of the resonator S, the other end of the other end of the resistance R9 and the resonator S
Connect with the cathode of the transmitting terminal power supply, the emitter of the triode Q4 respectively with the resistance R10, the capacitor
C10 is connected with one end of the capacitor C11, the other end of the resistance R10 and the capacitor C10 with the transmitting terminal power supply
Cathode connection, the collector of the triode Q4 respectively with the other end of the capacitor C11, the transmitting terminal radio-frequency transformer
Secondary coil L3 one end connection, one end of the primary coil L2 of the transmitting terminal radio-frequency transformer and the transmitting terminal power supply
Cathode connection, the other end of the primary coil L2 respectively with one end of the capacitor C12, the transmitting terminal audio amplification electricity
Road is connected with one end of the inductance L4, and the other end of the inductance L4 is connect with the transmitting antenna, and the resistance R8's is another
One end, the other end of the secondary coil L3, one end of the capacitor C13 and the capacitor C14 one end with the transmitting
Hold audio amplifier circuit connection, the other end of the capacitor C12, the capacitor C13 and the capacitor C14 with the transmitting terminal
The cathode of power supply connects.
4. a kind of total station for passing on a message according to claim 1, which is characterized in that the reception Signal Matching circuit
It include: triode Q5, resistance R11, resistance R12, resistance R13, resistance R14, capacitor C15, capacitor C16, capacitor C17, capacitor
C18, capacitor C19, capacitor C20, receiving end radio-frequency transformer and inductance L7；
The base stage of the triode Q5 is connect with one end of the resistance R11, the resistance R12 and the capacitor C15 respectively, institute
The other end for stating resistance R12 and the capacitor C15 is connect with the cathode of receiving end power supply, the emitter point of the triode Q5
It is not connect with one end of the resistance R13, the capacitor C16 and the capacitor C17, the resistance R13, the capacitor
The other end of C17 is connect with one end of the resistance R14, and one end of the resistance R14 is also connect with the capacitor C18, institute
The other end of the other end and the capacitance C18 of stating resistance R14 is connect with the cathode of the receiving end power supply, and described three
The collector of pole pipe Q5 respectively with the other end of the capacitor C16, the secondary coil L5 of the receiving end radio-frequency transformer one
End connection, one end of the primary coil L6 of the receiving end radio-frequency transformer is connect with the cathode of the receiving end power supply, described
The other end of primary coil L6 respectively with one end of the capacitor C19, the receiving end audio amplifier circuit and the inductance L7
One end connection, the other end of the inductance L7 connect with the receiving antenna, the other end of the resistance R11, the secondary
One end of the other end of coil L5 and the capacitor C20 are connect with the receiving end audio amplifier circuit, the capacitor C19 and
The other end of the capacitor C20 is connect with the cathode of the receiving end power supply.
5. a kind of total station for passing on a message according to claim 1, which is characterized in that the receiving end audio amplification electricity
Road include: triode Q6, triode Q7, triode Q8, resistance 15, resistance 16, slide rheostat R17, resistance 18, resistance 19,
Resistance 20, resistance 21, capacitor C21, capacitor C22, capacitor C23, capacitor C24, capacitor C25, capacitor C26, capacitor C27, capacitor C28
With impedance transformation transformer；
The base stage of the triode Q6 respectively with the resistance 15, the resistance R16, the capacitor C21 and the capacitor C22
The other end of one end connection, the other end of the resistance R16 and the capacitor C22 connect with the collector of the triode Q6
Connect, the other end of the resistance R15 is connect with one end of the capacitor C23, the other end of the capacitor C23 respectively with the cunning
The emitter of the sliding end connection of dynamic rheostat R17, the other end of the capacitor 21 and the triode Q6 are electric with receiving end
The cathode in source connects；
The base stage of the triode Q7 respectively with the collector of the triode Q6, one end of the resistance R18 and the capacitor
One end of C24 connects, and the collector of the triode Q7 is connect with one end of the secondary coil L8 of the impedance transformation transformer,
The other end of the secondary coil L8 is connect by switch with the anode of the receiving end power supply, the impedance transformation transformer
One end of primary coil L9 is connect with the cathode of the receiving end power supply, the other end and the loudspeaker of the primary coil L9
One end connection, the other end of the loudspeaker connect with the cathode of the receiving end power supply, and the secondary coil L8's is another
End is also connect with one end of the resistance R19, the other end of the resistance R19 respectively with the other end of the resistance R18, described
One end of resistance R20, the capacitor 25 one end connection, the other end of the resistance R20 respectively with the capacitor C26 one
A fixing end of one end connection at end, the capacitor C27, the other end of the capacitor C26 and the slide rheostat R17 connect
It connects, another fixing end of the slide rheostat R17, the other end of the capacitor C27, the other end of the capacitor C24, institute
The other end for stating capacitor C25 is connect with the cathode of the receiving end power supply；
The base stage of the triode Q8 is connect with the emitter of the triode Q7, the collector of the triode Q8 and described three
The collector connection of grade pipe Q7, the emitter of the triode Q8 connect with one end of the resistance R21 and the capacitor C28 respectively
Connect, the other end of the resistance R21, the capacitor C28 the other end connect respectively with the cathode of receiving end power supply.
6. a kind of total station for passing on a message according to claim 3, which is characterized in that the resonator S is quartz-crystal
Body resonator.
7. a kind of total station for passing on a message according to claim 3, which is characterized in that the frequency of the resonator S is
27MHz。
8. a kind of total station for passing on a message according to claim 2, which is characterized in that the resistance of the slide rheostat R3
Value range is 0-10k Ω.
9. a kind of total station for passing on a message according to claim 5, which is characterized in that the slide rheostat R17's
Standard resistance range is 0-10k Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477136.6A CN109596111B (en) | 2018-12-05 | 2018-12-05 | Total station for transmitting telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811477136.6A CN109596111B (en) | 2018-12-05 | 2018-12-05 | Total station for transmitting telephone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109596111A true CN109596111A (en) | 2019-04-09 |
| CN109596111B CN109596111B (en) | 2021-09-10 |
Family
ID=65961052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811477136.6A Active CN109596111B (en) | 2018-12-05 | 2018-12-05 | Total station for transmitting telephone |
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Citations (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209239U (en) * | 1986-11-17 | 1988-03-16 | 浙江师范大学 | Wineless pick-up of stringed music instrument |
| CN2084685U (en) * | 1990-10-24 | 1991-09-11 | 王岩国 | Multifunctional sound accompaniment repeater |
| CN2096186U (en) * | 1990-07-16 | 1992-02-12 | 张铁声 | Remote control lamp cap |
| CN2132346Y (en) * | 1992-05-04 | 1993-05-05 | 王宝民 | Amplitude-modulated transmitter and amplitude-modulated receiver |
| CN2168366Y (en) * | 1993-04-20 | 1994-06-08 | 霍立远 | Vertical radio receiver for blind person and normal person |
| CN2178405Y (en) * | 1993-06-26 | 1994-09-28 | 中国矿业大学 | Speech communication device for photoelectric range finder |
| CN1099918A (en) * | 1993-02-05 | 1995-03-08 | 艾利森·Ge·流动通讯有限公司 | Arrangement for duplex transmission |
| JPH0775166A (en) * | 1993-08-31 | 1995-03-17 | Sanyo Electric Co Ltd | Digital cordless telephone system |
| CN2265035Y (en) * | 1996-09-28 | 1997-10-15 | 李会斌 | Radio monitor |
| CN2296601Y (en) * | 1996-09-08 | 1998-11-04 | 李广泮 | Wireless languige teaching machine |
| CN2392320Y (en) * | 1999-11-15 | 2000-08-16 | 范振东 | Device for transferring and transmission of video/audio signals |
| US6119355A (en) * | 1998-06-02 | 2000-09-19 | Trimble Navigation Limited | Audible tilt sensor calibration |
| CN2400970Y (en) * | 1999-12-10 | 2000-10-11 | 陈龙明 | Wireless telephone for tour conductor and tourist |
| CN2834028Y (en) * | 2005-10-15 | 2006-11-01 | 高艳英 | Audio signal repeater |
| US20080007328A1 (en) * | 2003-01-03 | 2008-01-10 | Wavics, Inc. | Multiple power mode amplifier with bias modulation option and without bypass switches |
| US7336078B1 (en) * | 2003-10-04 | 2008-02-26 | Seektech, Inc. | Multi-sensor mapping omnidirectional sonde and line locators |
| CN201111709Y (en) * | 2007-05-28 | 2008-09-10 | 杨文喜 | Car remote-controlling tail lamp and remote control circuit thereof |
| CN201127016Y (en) * | 2007-09-13 | 2008-10-01 | 上海维恩佳得数码科技有限公司 | Transmission power amplifier circuit of EAS system |
| CN201191824Y (en) * | 2008-04-25 | 2009-02-04 | 河北理工大学 | Radio transmitter |
| CN101420237A (en) * | 2007-10-22 | 2009-04-29 | 鸿富锦精密工业（深圳）有限公司 | Monitoring circuit |
| CN101680757A (en) * | 2007-05-30 | 2010-03-24 | 特林布尔公司 | Radio network list for vehicle control and real time position data |
| US20100203916A1 (en) * | 2009-02-12 | 2010-08-12 | Clear Wireless Llc | Quality of service based multi-antenna mode switching |
| CN102216803A (en) * | 2008-11-17 | 2011-10-12 | 法罗技术股份有限公司 | Device and method for measuring six degrees of freedom |
| CN202696545U (en) * | 2012-07-30 | 2013-01-23 | 西安邮电大学 | Linear wideband high-frequency power amplifier |
| CN102932711A (en) * | 2012-10-23 | 2013-02-13 | 成都众询科技有限公司 | Wireless microphone signal transmitting circuit |
| CN203375964U (en) * | 2013-07-04 | 2014-01-01 | 苏州一光仪器有限公司 | Total station and setting-out survey device |
| CN203504550U (en) * | 2013-10-23 | 2014-03-26 | 成都艺创科技有限公司 | Receiver circuit for remote router |
| CN203758501U (en) * | 2014-01-26 | 2014-08-06 | 广州市市政工程设计研究院 | Mobile on-site topographic survey mapping device |
| CN104634330A (en) * | 2015-02-12 | 2015-05-20 | 重庆交通大学 | Controllable light-emitting prism device |
| CN204349980U (en) * | 2014-12-12 | 2015-05-20 | 柳州铁道职业技术学院 | Spi bus data distance transmission system |
| CN104660275A (en) * | 2013-11-25 | 2015-05-27 | 成都麦客堂信息技术有限公司 | Short wave amplitude modulated transmitter circuit |
| CN204836143U (en) * | 2015-07-30 | 2015-12-02 | 南宁凯美电子科技有限公司 | Broadcasting frequency modulation wireless transmitting circuit |
| CN205265665U (en) * | 2015-12-28 | 2016-05-25 | 北京创新纪技术开发有限公司 | Radio signal send system |
| CN106487333A (en) * | 2016-10-14 | 2017-03-08 | 北京无线电计量测试研究所 | A kind of constant current ionizes energizing circuit |
| CN207518549U (en) * | 2017-12-18 | 2018-06-19 | 河南省轻工业职工大学 | A kind of power amplification circuit for being used to communicate transmitter |
| CN208028914U (en) * | 2017-10-16 | 2018-10-30 | 石家庄伟钧电子科技有限公司 | A kind of portable WIFI signal amplifier |
| CN208189211U (en) * | 2018-05-25 | 2018-12-04 | 张建强 | A kind of hand scroll silica gel qin audio wireless transmission device |
-
2018
- 2018-12-05 CN CN201811477136.6A patent/CN109596111B/en active Active
Patent Citations (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209239U (en) * | 1986-11-17 | 1988-03-16 | 浙江师范大学 | Wineless pick-up of stringed music instrument |
| CN2096186U (en) * | 1990-07-16 | 1992-02-12 | 张铁声 | Remote control lamp cap |
| CN2084685U (en) * | 1990-10-24 | 1991-09-11 | 王岩国 | Multifunctional sound accompaniment repeater |
| CN2132346Y (en) * | 1992-05-04 | 1993-05-05 | 王宝民 | Amplitude-modulated transmitter and amplitude-modulated receiver |
| CN1099918A (en) * | 1993-02-05 | 1995-03-08 | 艾利森·Ge·流动通讯有限公司 | Arrangement for duplex transmission |
| CN2168366Y (en) * | 1993-04-20 | 1994-06-08 | 霍立远 | Vertical radio receiver for blind person and normal person |
| CN2178405Y (en) * | 1993-06-26 | 1994-09-28 | 中国矿业大学 | Speech communication device for photoelectric range finder |
| JPH0775166A (en) * | 1993-08-31 | 1995-03-17 | Sanyo Electric Co Ltd | Digital cordless telephone system |
| CN2296601Y (en) * | 1996-09-08 | 1998-11-04 | 李广泮 | Wireless languige teaching machine |
| CN2265035Y (en) * | 1996-09-28 | 1997-10-15 | 李会斌 | Radio monitor |
| US6119355A (en) * | 1998-06-02 | 2000-09-19 | Trimble Navigation Limited | Audible tilt sensor calibration |
| CN2392320Y (en) * | 1999-11-15 | 2000-08-16 | 范振东 | Device for transferring and transmission of video/audio signals |
| CN2400970Y (en) * | 1999-12-10 | 2000-10-11 | 陈龙明 | Wireless telephone for tour conductor and tourist |
| US20080007328A1 (en) * | 2003-01-03 | 2008-01-10 | Wavics, Inc. | Multiple power mode amplifier with bias modulation option and without bypass switches |
| US7336078B1 (en) * | 2003-10-04 | 2008-02-26 | Seektech, Inc. | Multi-sensor mapping omnidirectional sonde and line locators |
| CN2834028Y (en) * | 2005-10-15 | 2006-11-01 | 高艳英 | Audio signal repeater |
| CN201111709Y (en) * | 2007-05-28 | 2008-09-10 | 杨文喜 | Car remote-controlling tail lamp and remote control circuit thereof |
| CN101680757A (en) * | 2007-05-30 | 2010-03-24 | 特林布尔公司 | Radio network list for vehicle control and real time position data |
| CN201127016Y (en) * | 2007-09-13 | 2008-10-01 | 上海维恩佳得数码科技有限公司 | Transmission power amplifier circuit of EAS system |
| CN101420237A (en) * | 2007-10-22 | 2009-04-29 | 鸿富锦精密工业（深圳）有限公司 | Monitoring circuit |
| CN201191824Y (en) * | 2008-04-25 | 2009-02-04 | 河北理工大学 | Radio transmitter |
| CN102216803A (en) * | 2008-11-17 | 2011-10-12 | 法罗技术股份有限公司 | Device and method for measuring six degrees of freedom |
| US20100203916A1 (en) * | 2009-02-12 | 2010-08-12 | Clear Wireless Llc | Quality of service based multi-antenna mode switching |
| CN202696545U (en) * | 2012-07-30 | 2013-01-23 | 西安邮电大学 | Linear wideband high-frequency power amplifier |
| CN102932711A (en) * | 2012-10-23 | 2013-02-13 | 成都众询科技有限公司 | Wireless microphone signal transmitting circuit |
| CN203375964U (en) * | 2013-07-04 | 2014-01-01 | 苏州一光仪器有限公司 | Total station and setting-out survey device |
| CN203504550U (en) * | 2013-10-23 | 2014-03-26 | 成都艺创科技有限公司 | Receiver circuit for remote router |
| CN104660275A (en) * | 2013-11-25 | 2015-05-27 | 成都麦客堂信息技术有限公司 | Short wave amplitude modulated transmitter circuit |
| CN203758501U (en) * | 2014-01-26 | 2014-08-06 | 广州市市政工程设计研究院 | Mobile on-site topographic survey mapping device |
| CN204349980U (en) * | 2014-12-12 | 2015-05-20 | 柳州铁道职业技术学院 | Spi bus data distance transmission system |
| CN104634330A (en) * | 2015-02-12 | 2015-05-20 | 重庆交通大学 | Controllable light-emitting prism device |
| CN204836143U (en) * | 2015-07-30 | 2015-12-02 | 南宁凯美电子科技有限公司 | Broadcasting frequency modulation wireless transmitting circuit |
| CN205265665U (en) * | 2015-12-28 | 2016-05-25 | 北京创新纪技术开发有限公司 | Radio signal send system |
| CN106487333A (en) * | 2016-10-14 | 2017-03-08 | 北京无线电计量测试研究所 | A kind of constant current ionizes energizing circuit |
| CN208028914U (en) * | 2017-10-16 | 2018-10-30 | 石家庄伟钧电子科技有限公司 | A kind of portable WIFI signal amplifier |
| CN207518549U (en) * | 2017-12-18 | 2018-06-19 | 河南省轻工业职工大学 | A kind of power amplification circuit for being used to communicate transmitter |
| CN208189211U (en) * | 2018-05-25 | 2018-12-04 | 张建强 | A kind of hand scroll silica gel qin audio wireless transmission device |
Non-Patent Citations (2)
| Title |
|---|
| 林树华 等: "施工测量中测绘新技术的应用综述", 《科技风》 * |
| 陈文昭: "全站仪实用功能浅析及发展趋势展望", 《江西测绘》 * |
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| CN109596111B (en) | 2021-09-10 |
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