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Class timely feedback system

A feedback system and classroom technology, applied in the field of feedback systems, can solve problems such as difficult disassembly and repair, high installation difficulty, inconvenient portability, etc., and achieve the effects of easy portability, electrode saving, and cost saving

Inactive Publication Date: 2010-10-13
SHANGHAI JINYUAN SENIOR HIGH SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. In the prior art, the teaching question feedback device for students to rush to answer or refuse to answer the teacher's question is inconvenient to carry due to the adoption of the feedback and receiving system set on the desk, and the use occasions are limited to indoor occasions such as classrooms
[0007] 2. In the prior art, the teaching question feedback device for students to rush to answer or refuse to answer the teacher's question is installed on the desk, which is difficult to install, has a complicated structure, and is not easy to disassemble and repair

Method used

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  • Class timely feedback system
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Examples

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Embodiment Construction

[0025] Please see attached figure 1 and attached image 3 As shown, the student voting device A includes a housing 1, four buttons 2 arranged in sequence on the front of the housing 1, and an antenna 3 arranged on the top of the housing 1. The buttons 2 on the front of the housing 1 are respectively set as A and B. , C, and D four options, the button 2 is connected to the input terminal of the transmission circuit A4 arranged inside the casing 1, the output terminal of the transmission circuit A4 is connected to the antenna 3, the positive pole of the wire 3 is connected to the positive pole of the battery A1, and the battery A1 The negative pole of the switch A2 is connected to one end of the switch A2, and the other end of the switch A2 is connected to the sending circuit A4.

[0026] Please see attached figure 2 and attached image 3 As shown, the teacher’s receiving processor B includes a housing 4, a liquid crystal screen 5 arranged above the front of the housing 4, a...

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Abstract

The invention relates to a class timely feedback system, comprising a battery, a control switch, an antenna, a transmitting circuit and a receiving circuit as well as a student voter and a teacher receiving processing display. The invention has low cost, safe and convenient use, rapid and safe transmission and simple structure; statistic processing and data analysis can be carried out timely, thus being convenient for student-teacher sessions.

Description

technical field [0001] The invention relates to a feedback system, in particular to a classroom timely feedback system. Background technique [0002] At present, a prior art rudder angle feedback device changes the magnitude of the output voltage by changing the direction of the fixed magnet on the rotor. It is a non-contact potentiometer whose working life is dozens of times longer than ordinary potentiometers and has stable performance. It can be applied to the corner servo control and display of ships, aircraft and other equipment. [0003] Another prior art teaching feedback evaluation device includes a bus transceiver, a serial communication bus and a student terminal group composed of a number of student response feedback devices. This prior art communication bus has a simple structure, easy wiring, easy maintenance and expansion, high infrared communication efficiency, real-time information collection of a large amount of data, and communication is not easily disturb...

Claims

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Application Information

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IPC IPC(8): G09B7/02
Inventor 周郁畅黄桂兰
Owner SHANGHAI JINYUAN SENIOR HIGH SCHOOL
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