CN100393002C - Wireless magnetic conductive connecting method and device between student units and system in speech teaching device - Google Patents
Wireless magnetic conductive connecting method and device between student units and system in speech teaching device Download PDFInfo
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- CN100393002C CN100393002C CNB2004101030956A CN200410103095A CN100393002C CN 100393002 C CN100393002 C CN 100393002C CN B2004101030956 A CNB2004101030956 A CN B2004101030956A CN 200410103095 A CN200410103095 A CN 200410103095A CN 100393002 C CN100393002 C CN 100393002C
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Abstract
The present invention relates to a wireless magnetic conductive connecting method and a device between a student unit and a system in a speech teaching device. A voice signal sent from a master station device is sent to the student unit through a communication device, and a voice signal of lecturing of a teacher or current playing of the master station is taken out from the student unit, and is delivered to a magnetic control amplifier. A direct current voltage is adopted for supplying power, and OTL power is amplified, and is sent to a transmission coil. Thus, a cellular audio frequency magnetic field is obtained, and the uniformity and the efficiency of the audio frequency magnetic field in the classroom are realized. The CET earphone of the student is used for receiving the audio frequency magnetic field, and an audio frequency magnetic signal is converted to a speech signal which is broadcast from the earphone. The student and the teacher carry out interaction through the microphone hidden on the desk, and the functions of listening of the students, lecturing of the teacher and demonstration of all students in the class are realized.
Description
Technical field
The present invention relates to phonetic teaching equipment, refer in particular to wireless completely magnetic conductance method and device thereof between a kind of phonetic teaching equipment middle school student unit and the system.
Background technology
Be the Mechanical Contact mode at present between student unit that adopts in the phonetic teaching process and the system, adopt socket and wired connection between earphone in the student unit, microphone and the system, the disadvantage of this mode is to use the failure rate of middle school student unit and spoilage very high, directly influenced the safe operation of phonetic teaching equipment, thereby influenced normally carrying out of order in education, and the equipment control difficulty, the operating cost height.Used special student's earphone in the wireless speech teaching equipment that the patent No. is mentioned for the utility model patent of " 02221406.2 ", its circuit structure is complicated, and lose easily and damage, make the keeping of student's earphone more difficult after adopting this wireless mode, the speech room management difficulty is strengthened, increased speech room operation human cost, the student's earphone in the wireless speech teaching equipment that the patent No. is mentioned for the utility model patent of " 02224214.7 " is adjusted difficulty, operation inconvenience.
Summary of the invention
The purpose of this invention is to provide wireless magnetic conductance method of attachment and device thereof between a kind of phonetic teaching equipment middle school student unit and the system, can carry out the low-cost upgrading of wireless penetration existing various types of voice chamber system.
Wireless magnetic conductance method of attachment between a kind of phonetic teaching equipment middle school student unit and the system, it is characterized in that: the voice signal that the master station device sends is dealt in the student unit by the communication device, from the student unit, take out again from the teacher's teaching of master station or the voice signal of current broadcast, the magnetic control system of sending into amplifier, adopt DC-voltage supply, the OTL power amplification, send into transmitting coil again, thereby obtain honeycomb type audio frequency magnetic field, realized that audio frequency magnetic field evenly and effectively in this classroom, student's CET earphone has received audio frequency magnetic field, convert the audio frequency magnetic signal to voice signal, broadcast from earphone, the student carries out interaction by microphone and the teacher who hides on desk, realizes student's audition, teacher teaches, the full class of student model function.
Wireless magnetic conductance jockey between a kind of phonetic teaching equipment middle school student unit and the system, by the master station device, the communication device, the student unit, wherein the communication device is by cable, contact controller between master station and the student unit constitutes, the student unit is made of microphone and Earphone Amplifier, it is characterized in that: increased transmitting coil, magnetic control system amplifier, the OTL power amplifier, the CET earphone, wherein transmitting coil is provided with according to the shape and size of desk, and be built in the desk front, and, guarantee that each coil D.C. resistance is 5～9 Ω by adjusting the winding wire footpath and the number of turn; Magnetic control system amplifier and OTL power amplifier place among the student unit, wherein magnetic control system amplifier is a level adjustable-voltage amplifier, the OTL power amplifier is an audio-frequency power amplifier, the CET earphone is the student of an ordinary higher learning school foreign language listening examination earphone, its signal connection status is: the voice signal of master station device is by the communication device, be added to the magnetic control system amplifier in the student unit, pass through the OTL power amplifier again, send into transmitting coil, the CET earphone that passes to the student by audio frequency magnetic conduction pattern receives, the student utilizes the student's microphone MIC that hides on desk, carries out the two-way interaction between the teachers and students.
The present invention initiates honeycomb type audio frequency magnetic conductance technology, realizes isolating between voice conduction and classroom; Adopt audio frequency magnetic field directly to conduct voice signal, realize not having between student unit earphone and the system machinery and contact voice and directly conduct; Adopt honeycomb type audio frequency lift-off technology and magnetic field configuration control technology, realize the even emission effective audio frequency magnetic field in, about assurance, front and back and the magnetic conductance information in adjacent classroom isolation down upstairs; The mode that adopts student's microphone to hide desk, realize wireless completely contact the between student unit and the system, in teaching management, highlighted following advantage: the one, do not have machinery between student unit and the system and contact and wireless connections, the rate of breakdown that is brought by Mechanical Contact and wired connection is near zero in theory; The 2nd, the student unit adopts the CET earphone, does not increase cost, and the CET earphone directly dissolves in voice system, and keeping, the artificial damage of thoroughly having stopped the student unit oneself are taken away in the student unit; The 3rd, after the student unit was taken away voluntarily, voice system can be totally-enclosed, guaranteed the safety of whole system, and speech room can be used as other classrooms and uses, and the classroom utilization rate obviously improves; The 4th, student's cell failure incidence is totally-enclosed near the zero-sum system, and whole speech ciphering equipment fault is very low, has effectively guaranteed the normal order in education that hearing is levied on technological means; The 5th, operating cost is near zero, for large tracts of land safety, efficiently use speech room to provide a practicable solution first from technology and management layer.
Description of drawings
Fig. 1 signal flow schematic diagram.
Embodiment
As shown in the figure, high 11cm is set on each desk, isometric with desk, the transmitting coil of thick 1.6cm, by adjusting the winding wire footpath and the number of turn, guarantee that each coil D.C. resistance is 6 Ω, the voice signal that the master station device sends is dealt in the student unit by the communication device, from the student unit, take out the voice main signal, the magnetic control system of sending into amplifier, adopt DC-voltage supply, transmitting coil is sent in the OTL power amplification, and controlling magnetic field intensity is in this classroom, received by student's CET earphone by the magnetic conduction pattern, the student carries out interaction by the MIC that hides on desk, realizes student's audition, teacher teaches, the full class of student model function.
Claims (3)
1. the wireless magnetic conductance method of attachment between phonetic teaching equipment middle school student unit and the system, it is characterized in that: the voice signal that the master station device sends is dealt in the student unit by the communication device, from the student unit, take out again from the teacher's teaching of master control table apparatus or the voice signal of current broadcast, the magnetic control system of sending into amplifier, adopt DC-voltage supply, the OTL power amplification, send into transmitting coil again, student's CET earphone has received audio frequency magnetic field, convert the audio frequency magnetic signal to voice signal, broadcast from earphone, the student carries out interaction by microphone and the teacher who hides on desk, realizes student's audition, teacher teaches, the full class of student model function.
2. the wireless magnetic conductance jockey between phonetic teaching equipment middle school student unit and the system, by the master station device, the communication device, the student unit constitutes, wherein the communication device is by cable, contact controller between master station device and the student unit constitutes, the student unit is made of microphone and Earphone Amplifier, it is characterized in that: increased transmitting coil, magnetic control system amplifier, the OTL power amplifier, the CET earphone, wherein transmitting coil is provided with according to the shape and size of desk, and be built in the desk front, and, guarantee that each transmitting coil D.C. resistance is 5～9 Ω by adjusting the line of departure astragal footpath and the number of turn; Magnetic control system amplifier and OTL power amplifier place among the student unit, wherein magnetic control system amplifier is a level adjustable-voltage amplifier, the OTL power amplifier is an audio-frequency power amplifier, the CET earphone is the student of an ordinary higher learning school foreign language listening examination earphone, its signal connection status is: the voice signal of master station device is by the communication device, be added to the magnetic control system amplifier in the student unit, pass through the OTL power amplifier again, send into transmitting coil, the CET earphone that passes to the student by audio frequency magnetic conduction pattern receives, the student utilizes the student's microphone MIC that hides on desk, carries out the two-way interaction between the teachers and students.
3. the wireless magnetic conductance jockey between a kind of phonetic teaching equipment middle school student unit according to claim 2 and the system is characterized in that: the length of transmitting coil and the length of desk are isometric, and the D.C. resistance of coil is 6 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101030956A CN100393002C (en) | 2004-12-31 | 2004-12-31 | Wireless magnetic conductive connecting method and device between student units and system in speech teaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101030956A CN100393002C (en) | 2004-12-31 | 2004-12-31 | Wireless magnetic conductive connecting method and device between student units and system in speech teaching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1645765A CN1645765A (en) | 2005-07-27 |
| CN100393002C true CN100393002C (en) | 2008-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101030956A Expired - Fee Related CN100393002C (en) | 2004-12-31 | 2004-12-31 | Wireless magnetic conductive connecting method and device between student units and system in speech teaching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100393002C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86208285U (en) * | 1986-10-31 | 1988-06-08 | 广州珠鹰厂 | Earphone for radioed education |
| CN1071793A (en) * | 1991-10-17 | 1993-05-05 | 刘子雨 | Power line transmitting wireless earphone receiving teaching system |
| CN1212575A (en) * | 1998-08-21 | 1999-03-31 | 南京斯亚电子医疗器械有限公司 | Broadcasting guide command system |
| CN2520614Y (en) * | 2002-01-22 | 2002-11-13 | 重庆新大地电子有限公司 | Low frequency radio voice teaching apparatus |
| CN2529467Y (en) * | 2002-03-11 | 2003-01-01 | 骏安科技有限公司 | Handfree receiver with radio earphone |
| CN2571075Y (en) * | 2002-06-06 | 2003-09-03 | 周葵申 | Mobile wireless phonetic teaching equipment |
-
2004
- 2004-12-31 CN CNB2004101030956A patent/CN100393002C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86208285U (en) * | 1986-10-31 | 1988-06-08 | 广州珠鹰厂 | Earphone for radioed education |
| CN1071793A (en) * | 1991-10-17 | 1993-05-05 | 刘子雨 | Power line transmitting wireless earphone receiving teaching system |
| CN1212575A (en) * | 1998-08-21 | 1999-03-31 | 南京斯亚电子医疗器械有限公司 | Broadcasting guide command system |
| CN2520614Y (en) * | 2002-01-22 | 2002-11-13 | 重庆新大地电子有限公司 | Low frequency radio voice teaching apparatus |
| CN2529467Y (en) * | 2002-03-11 | 2003-01-01 | 骏安科技有限公司 | Handfree receiver with radio earphone |
| CN2571075Y (en) * | 2002-06-06 | 2003-09-03 | 周葵申 | Mobile wireless phonetic teaching equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1645765A (en) | 2005-07-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20080604 Termination date: 20101231 |