Primary School Campus Broadcasting Program

1. Overview of Primary School Broadcasting ** Primary school was established in 1950. It is a publicly-run primary school directly under the Education Commission of Haidian District, Beijing. It is now divided into two campuses, divided into North Campus and South Campus. There are 58 teaching classes, more than 2,500 students, 140 Many teaching staff. The school has an outstanding team of key teachers. Among them, 5 senior middle school teachers, 1 Beijing academic leader, 3 municipal backbone teachers, 4 municipal forbidden cup class teachers, 17 district-level subject leaders, 23 district-level backbone teachers, 51 centers Discipline leader.
The school has been rated as a quality school for quality education in Haidian District, a national model school for mental health, a model school for campus culture construction in Beijing, an advanced school for scientific research in Beijing, an advanced school for curriculum reform in Beijing, a health promotion school in Beijing, a green school in Beijing, Beijing Jinfan Art School, Haidian District Advanced Teaching Management School, Moral Education Management Advanced School, Haidian District Science and Technology Demonstration School ...
** The concept of running a primary school is to "promote the child's comprehensive, healthy and harmonious development". The school idea is "harmony, competition and innovation". The goal of running a school is to make it a first-class school that is “open and international”. The characteristics of running a school are based on school-based teaching and research, and strive to create a harmonious, healthy and happy campus culture atmosphere for teachers and students to lay the foundation for the child's lifelong development. In order to provide students with a richer campus environment, the school decided to build a primary school broadcasting system, requiring the primary school broadcasting system to be designed in accordance with the principle of "economic, practical and advanced".
2. Design basis and principles of elementary school broadcasting 2.1 Design principles The elementary school broadcasting program is based on the guiding ideology of "advanced, scientific and practical", and its indicators have reached the current level of national standards in China.
2.2 Design Concept Build a campus intelligent broadcasting system that meets the needs of elementary schools, and realize the overall goal of a new generation of elementary school intelligent broadcasting with "multiple sound source playback, simple operation, simple automatic playback, and convenient expansion and maintenance".
3. Design of elementary school broadcasting scheme 3.1 Elementary school broadcasting front-end design: use computer, deck, digital tuner, wireless microphone, broadcast microphone, etc. as the program source, compatible with the current multi-format audio programs, expand the choice of audio programs; choose campus The combination of intelligent broadcasting software and intelligent broadcasting controller has enabled elementary school campus broadcasting to achieve "multiple sound source playback, simple operation, easy automatic playback, convenient expansion and maintenance", which has improved the grade and level of campus broadcasting; the use of constant pressure with stable performance As an audio-driven device, the power amplifier effectively guarantees the stable and reliable operation of campus broadcasting for a long time.
3.2 Primary school broadcast transmission design: Adopt 100V constant pressure broadcast transmission of audio line.
3.3 Elementary school broadcast terminal design: wall-mounted / ceiling speakers are used in classrooms, and constant-pressure sound columns are used outdoors.
4. Introduction of Primary Equipment for Primary School Broadcasting 4.1 Automatic Broadcasting Software for Campus Broadcasting SB2010 Intelligent Broadcasting Software is an intelligent broadcasting system designed and developed mainly for schools, and can also be applied to other industries. The system consists of SB2010 intelligent broadcast controller and SB2010 broadcast control software. It uses computer multimedia technology to integrate playback, timing control, partition control, power control, automatic power on and off, and schedule management. It has powerful functions, good applicability, high degree of automation, and can operate unattended for 24 hours. Accurate timing function, simple operation interface, SB2010 is a set of low-cost, cost-effective intelligent broadcasting system solutions.
This software has the following characteristics:
Ø Play digital music: SB2010 uses computer multimedia technology to play four common digital music files: MP3, WMA, WAV and MIDI. You can obtain music files by purchasing music CDs, downloading from the Internet, or even recording by yourself.
Ø Timing play and control: When the system is in automatic mode, SB2010 can automatically play according to the selected schedule, and turn on the corresponding power and partition according to the settings.
Ø Music instead of ringtones: On campus, you can play beautiful music instead of the original rigid ringtones to create a more warm campus environment for students.
Ø 24 hours unattended operation: You can set the computer to automatically start at a fixed time. After Windows starts, SB2010 will automatically start and enter the automatic playback mode; when the last item of the schedule is finished, SB2010 will automatically shut down the computer.
Ø Management of multiple sets of schedules: SB2010 can create multiple sets of schedules, and can copy schedules, and can easily switch between schedules.
Ø Background music: SB2010 adds background music function, you can specify the start and end time, loop, random play background music, very suitable for hotels, hotels, supermarkets and other places to use.
Ø Internet radio: SB2010 can listen to Internet radio. As long as it is connected to the Internet, SB2010 can regularly broadcast Internet radio programs.
4.2 Intelligent Broadcast Controller Under the control of SB2010 software, SB2010 Intelligent Broadcast Controller completes the automatic control of power supply and partition. It has two working modes, namely automatic mode and manual mode. The front and rear panels of the SB2010 intelligent broadcast controller are shown in the figure below:
Detailed description:
Ø Manual automatic switching (G): the first button from the left in the lower row "Auto / Manual" is the automatic manual switching button. Press this key, the indicator light is on, and it is in automatic state. At this time, the partition status and power output are only controlled by the computer, and the buttons on the front panel do not work. Press this button, the indicator light is off, it is in the manual state, then the partition status and power output are only controlled by the button, and the computer does not work. The manual automatic state of the controller can be selected according to the specific needs. Generally, the controller is set to the automatic state during timed playback, and is set to the manual state during manual insertion.
Ø Partition switch (E): The controller can be operated manually in the manual state. The eight buttons on the right in the lower row are partition control buttons, each button corresponds to a partition. Press the button, the indicator light is on, and the corresponding partition is connected; press the button, the indicator is off, and the corresponding partition is disconnected. In the automatic state, these buttons have no effect.
Ø Power control (C): A row of six buttons on the front panel are buttons for power control. The operation method is the same as the partition switch. In the automatic state, these buttons have no effect.
Ø Data transmission indicator (D): The light flashes slowly to indicate offline status, and quickly flashes to indicate connected status.
Ø H is a partition input, a total of eight 16-terminal terminals, no two connections, respectively connected to the positive and negative terminals of the power amplifier output.
Ø N is the partition output, a total of eight 16-terminal terminals, no two connections, connected to the on-site audio cable. There is a one-to-one correspondence between the eight-channel partition input and output. If one input and multiple outputs are to be realized, the related partition input terminals should be connected together.
Ø I is a nine-core D-type socket (pin) connected to the serial port of the computer to realize data transmission between the controller and the computer. (A serial cable is provided at random)
Ø J and M are 220VAC power output sockets. The maximum output power of a single socket is 1KW, and the total output power is 2KW.
Ø K is the power fuse (220VAC 1A).
Ø L is the power cord, 220VAC / 50HZ / 2KW, the external power socket must have enough power.
4.3 Mixer The S-8 mixer has 8 channel inputs, 4MIC, 4 mono line inputs, 4 buses (stereo and grouped), low noise high precision microphone amplifier, phantom power, 3 band channel equalizer, 2 auxiliary Send and 1 stereo auxiliary return, built-in digital effects.
Technical index:
Mono input Ø? Microphone input: electronically balanced, independent input configuration Ø? Frequency response: 10Hz-55kHz, + 0 / -3dB
Ø Distortion and noise: 0.005% at + 4dBu, 1kHz
Ø Signal to noise ratio: 115dB
Ø Linear input: electronically balanced Ø Frequency response: 10Hz-55kHz, + 0 / -3dB
Ø Distortion and noise: 0.005% at + 4dBu, 1kHz
Stereo channel input Ø Linear input: unbalanced Ø Frequency response: 10Hz-55kHz, + 0 / -3dB
Ø Distortion and noise: 0.005% at + 4dBu, 1kHz
Impedance?
Ø Microphone input: 1.4kΩ
Ø Channel insertion backward feed: 2.5kΩ
Ø All other inputs: 10kΩ or greater Ø Tape output: 1KΩ
Ø All other outputs: 120Ω
Ø Dimensions: 245 (W) * 268 (D) * 24/73 (H) mm
Ø Weight: 2.4kg (5.29ib)
Ø Power supply: AC100V-120V, 60Hz / AC220V-240V, 50Hz
Ø Power consumption: 18W
4.4TU313 digital tuner Features of digital tuner:
Ø Original luxury fluorescent dynamic display, full-featured microcomputer control system.
Ø Manual / automatic / radio frequency direct selection and many other tuning channel selection methods, easy to operate.
Ø Unique channel browsing and playback function, 60 radio frequency storage, life-long memory, never lost.
Ø Twenty-four hour clock display, scheduled on / off, scheduled alarm four times, super intelligent housekeeper function.
Ø Dynamic color level spectrum display, ten fantasy spectrum display mode selection.
Ø Leisurely infrared long-distance full-function remote control Ø Color box size: 475x295x100mm
Ø Net weight: 1.8kg
4.5 deck
Product introduction:
Ø High-quality loop playback movement, with continuous loop and single loop dual playback mode Ø playback channel adopts full DC coupling design, low frequency response characteristics, very low noise Ø Specially designed constant and double speed recording frequency compensation system to make the recording effect More perfect, especially suitable for recording CD and other high-quality programs Ø DNR dynamic noise reduction system Ø All-electronic recording, playback and conversion appliances Ø Normal, double speed tape copy Ø Main performance indicators of metal tape recording and playback compensation system Ø Speed ​​error: ≤3 %
Ø Shaking rate: ≤0.5% (weighted peak value)
Ø Audio frequency: 125Hz-6.3KHz (-6dB)
Ø Unbalance: ≤3dB
Ø Signal to noise ratio: ≥35dB
6. Constant voltage power amplifier combined with zoned power amplifier: 70W / 130W / 260W / 360W rated power, three microphone inputs, two AUX inputs, one AUX output; 100V, 70V constant voltage output and 4Ω to 16Ω fixed resistance output Five-unit LED level meter. There is silent function for easy insertion of emergency broadcast. Each channel has independent volume control, high and low tone control, output short circuit protection alarm, a single machine is a small public address system, telephone broadcast access, prelude function.
Technical Parameters:
Ø Rated power 70W / 130W / 260W / 360W
Ø Rated voltage 70-100V (4-16 Euro)
Ø Signal to noise ratio -85dB
Ø Standard size 88 × 482 × 330mm
Ø Harmonic distortion <0.1%
Ø Sensitivity 5mV
Ø Weight 10.25kg
7. Wall-mounted / ceiling speaker Ø RATES INPUT: 6W
Ø LINE VOLTAGE: 70 / 100V
Ø SENSITIVITY (1M, 1W): 90dB
Ø FREQUENCY RESPONSE: 120-13KHz
Ø DIMENSIONS (MM): Φ210X75MM
Ø HOLEFOR MOUNTING: Φ190MM
8. Outdoor column Ø RATES INPUT: 40W
Ø LINE VOLTAGE: 70 / 100V
Ø SENSITIVITY (1M, 1W): 90dB
Ø FREQUENCY RESPONSE: 120-13KHz
Fifth, the features of elementary school broadcasting function Ø Compatible with a variety of audio programs: CD, DVD, FM FM and various current digital format audio programs can be played, which makes the choice of broadcast programs wide.
Ø Scheduled automatic play function: Weekly playlists can be set as required, and the system will automatically perform play tasks according to the layout design without manual intervention.
Ø Automatically switch on / off the host every day: It is used for program broadcast. The computer can be turned on regularly every day, and the playback task will be automatically closed to achieve unattended check-in.
Ø Automatic partition timing playback: The intelligent broadcast host comes with four partition power amplifier timing management. If you need to play in different partitions in different time periods, you can configure one power amplifier for each partition and use the intelligent broadcast host to manage automatic switches.
Ø Emergency emergency insertion function: The school can manually switch on and off the power amplifier in each zone according to the needs of the intelligent broadcast host to achieve emergency emergency insertion or speech.
Sixth, the primary school broadcast configuration list

7. Quality assurance of elementary school broadcasting construction Beijing Haite Weiye Technology Co., Ltd. has an excellent and professional construction team, determined to make the best campus broadcasting system.
We have system technical engineers in charge of on-site installation guidance, debugging and preparation of technical documents required for acceptance, to achieve the best use effect;
All equipment and cables have factory certificates, and the equipment is unpacked and checked before installation. Its technical conditions must comply with relevant national regulations and design requirements;
All equipment should be fully checked before trial operation and confirmed to meet the operating conditions before being put into operation;
The production and installation of all fixed parts are in compliance with the drawings and relevant specifications;
The construction and acceptance of the project shall be carried out in accordance with the relevant national regulations. All engineering technical materials have been sorted out and submitted to Party A for review and preservation;
Strictly follow the construction schedule to ensure that customers can use it as scheduled.
8. Primary school broadcast use training In order to allow customers to better understand and use the products we provide, we will conduct a series of trainings for system users after the project is completed;
1. Provide a detailed system instruction manual;
2. Introduce the operation essentials and related knowledge of the campus broadcasting system of Haite Weiye in detail;
3. Explain the structural composition, functional characteristics, connection methods and installation operations of the Hite Weiye campus broadcasting system.
4. Flexible application of device functions and some experience;
Through theoretical training and practical operation training, the operators can have a systematic understanding and understanding of the equipment, and the operation products that can train the system can eliminate the perceived faults, so that the system can operate normally and be well maintained.
Nine, the commitment of primary school broadcast after-sales service 8.1 Principles of after-sales service: timely, fast and thoughtful 8.2 Qualification of after-sales service personnel: All engineering and technical personnel have undergone two months of professional training. Equipment installation and maintenance are all operated and implemented by professionals.
8.3 Installation and commissioning: After the equipment is shipped to the location specified by the user, the company will send professional engineering and technical personnel to the user's site to install and debug the equipment.
8.4 Accessories guarantee: The company has a special spare parts warehouse, and all spare parts are provided by the factory. If the equipment fails during use, our company can provide spare equipment.
8.5 Warranty time: All equipments are provided with one-year warranty service. During this period, all spare parts are provided by the company free of charge. After the warranty period, the company will carry out lifetime maintenance on the equipment. The cost of spare parts is charged.
8.6 Specific implementation: The after-sales engineering department has built user files, and set up dedicated personnel to regularly (once every three months) telephone return visits to old customers to understand the equipment usage status and record them. Set up a dedicated phone to answer users for repair at any time. After receiving the repair report every time, immediately fill out the maintenance notice and submit it to the responsible engineer, and accurately describe the equipment failure to the engineer. The engineer signs the notice and is responsible for maintenance. All calls for repairs will be answered by a professional engineer or sent to the site within 48 hours for maintenance.
10. Brief Introduction of Primary School Broadcasting Manufacturers Beijing Haite Weiye Technology Co., Ltd. is an innovative high-tech enterprise integrating product development, production, sales and after-sales service. Companies adhering to the "rigorous, efficient, innovative and perfect" entrepreneurial spirit, bold exploration, innovation, excellence, to provide our clients with first-class products and quality services. The company adheres to the business philosophy of "innovation as the soul, technology as the power, quality as the basis, and integrity as the purpose". With a rigorous work attitude, a keen market sense, a strong scientific research team and a sincere cooperative attitude, the company The industry has won a good reputation, and thus established a huge and stable customer network.
Haiteweiye has strong technical strength, advanced production equipment, rigorous management experience, and scientific working methods. It has always been adhering to the working style of "unity, innovation, hard work and high efficiency", and mainly operates the following products:
ØDigital network broadcasting, constant pressure public broadcasting, common cable FM broadcasting, wireless FM broadcasting in the public broadcasting industryØAutomatic broadcast of TV programs in the broadcast and television industry, multiplexing demodulation of TV programs, CATV closed circuit TV equipmentØSecurity and protection industry audio video matrix, Optical cable monitoring transmission, total cable monitoring transmission, network monitoring transmission Hite people believe that "attitude determines everything, details show results", we will provide you with the most generous service with "enthusiastic attitude, advanced technology, comprehensive service" We will continue to adhere to the corporate culture of "Hainan Baichuan, Zhuote extraordinary, win-win cause", with the slogan of "Honest sincerity, specialty and exquisiteness" as a spur, to provide our customers with more scientific, more mature, more perfect Products and services!