What are the current anti-cheating measures in the national college entrance examination?

As the college entrance examination nears, the nation’s million students will go to the battlefield again. There will be thousands of troops crossing the single-plank bridge and the competition will be fierce. In order to be able to earn more points in the exams, plus cheating, you will find cheating every year. From stealing, entraining, and using invisible headphones, there are a variety of cheating methods. Here we must tell you that the measures taken to prevent cheating in the college entrance examination are very strict, or face the college entrance examination in good faith.

Metal Detector: When the cheating equipment is rejected from the examination room, the examiner will examine the examinee’s belongings. Except for 2B pencils, pens (pen, ballpoint pen), rubber and other test items that can be carried, candidates must not carry any communication tools (eg mobile phones, radio receivers, transmission equipment), electronic storage memory devices, and alterations that are not related to the examination. Liquids, metal products, etc. enter the examination room, and timing instruments including watches are not allowed to enter the examination room.

Do not question whether it really can play a role, first look at the characteristics of hand-held metal detectors: hand-held metal detector easy to use, detect metal objects respond quickly, when the metal is detected, both sides of the Alert light can issue a red alarm Simultaneous alarm sound and LED illumination; high accuracy and sensitivity for accurate detection of very small metal objects (0.1g or even smaller); clear low-frequency tone emitted when detecting smaller metals Acoustic, which emits high pitch tones when detecting large metal objects.

Before use, first open the battery compartment cover on the back of the instrument and insert the battery. The instrument uses a 9V laminate battery. Please note that the nominal voltage on the battery must be 9V. Other voltages must not be used as substitutes. The power consumption of this instrument is very low, and each newly installed battery can work for about 50 hours. When the battery energy drops to 10%, the instrument can no longer work properly. At this time, the horn will give off an intermittent buzz, prompting us to replace the new battery.

In use, the security personnel hold the handle by hand, press the start button with the thumb, and then release, the signal lamp of the instrument will start to flash, and the horn will emit a very slight beep at the same time, indicating that the instrument enters the working state. Workers hold the switched on instrument to scan the surface of the person (or object). If there is a metal object, the instrument will make a sound. After the inspection is completed, the stop button should be pressed to avoid wasting battery power.

The whole process of recording the examination process is to improve the management efficiency of national educational examinations and provide sufficient technical guarantees for the safe operation of national educational examinations. The Examination Center of the Ministry of Education proposes to establish a “National Education Examination Online Inspection System” and establish examination institutions and test centers at all levels across the country. The video surveillance network realizes the monitoring and commanding of the examination process and the confidential room.

The patrol examination management system is a comprehensive business application system that includes monitoring technology, computer multimedia technology, communication technology, audio and video technology and education examination management technology. From the main body type of the system, it can be divided into four components: monitoring resources, transmission network, monitoring center and user terminal. The monitoring resources are the source of system monitoring information; the transmission network is the medium for connecting monitoring resources, monitoring centers and user terminals; the monitoring center is the system's information management and sharing platform; and the user terminal is the system's information service object.

The monitoring resources are embodied in the front end of information collection. They can be either front-end devices or regional monitoring systems.

Image acquisition is mainly for various cameras and pre-transmission equipment; sound collection equipment mainly refers to pickups, speakers and their supporting pre-transmission equipment, which are adopted in the case of video conferences, live broadcasting, two-way intercom and other requirements, and can also be used as tests. Applications such as pre-training provide basic equipment. The intrusion alarm equipment is mainly various types of detectors and alarm controllers set on site.

The transmission network transmission network may be a private network, a public communication network, or an independent network built specifically for the patrol examination management system; it is an IP network built on communication equipment, and the system backbone transmission network in Guangdong uses a public communication network. The test site system uses LAN transmission. The main equipment includes transmission equipment, video encoder/decoder equipment.

The monitoring centers at all levels of the monitoring center's patrol examination management system refer to the monitoring centers that are managed and used by the education examination department and have display, storage, alarm processing, and command capabilities. According to the administrative subordination relationship and work relevance, the management system of the National Education Examination Monitoring Center is mainly divided into five levels. The first level monitoring center is set up at the national level, and the second level monitoring center is set up at provincial and municipal examination centers. The examination center or the examination department sets up a three-level monitoring center, and the district-county school-level recruitment office or examination department sets up a four-level monitoring center, and each school test center has a five-level monitoring center. The Guangdong Provincial Education Examination Institute establishes a four-level monitoring center according to local conditions, and the monitoring focus is at the test center monitoring center.

The functions of controlling, managing and monitoring the monitoring resources are mainly realized in the monitoring center. Through authorization, monitoring resources can also be accessed and controlled at the user terminal.

The main subjects of control management include video matrix, servers and other equipment, as well as the monitoring and management system software platform. The object of control management involves all the devices of the system.

The user terminal user terminal includes the terminal equipment used by the staff at various levels of examination and other functional departments. The user accesses and controls the monitoring resources through the user terminal equipment. The user's behavior is managed and authorized by the monitoring center.

The Ministry of Education, the Provincial Department of Education, and the need to retrieve and control video, audio, and data information from related test sites can be implemented as users with special permissions and functions.

Radio Signal Shielding Wall: It will not affect the candidates' normal performance. In order to maintain the interests of the vast majority of candidates, the necessary cheating measures must be taken against the cheating of a few people. The examination management department has also adopted radio shielding.

During the test period, the surroundings of the examination room and the surrounding environment of the examination room shall be monitored in all directions. All monitoring stations and monitoring vehicles will enter the state at the appointed time. All radio frequency sections will be comprehensively monitored. Once an abnormal signal is found, it will immediately take signal interference measures. Signal off. In addition, the technicians can also help the relevant authorities to seize the cheating elements according to the directions of the direction-finder.

Some parents of the candidates felt uneasy about this, and they feared that it would affect the normal performance of the children's college entrance examination. In fact, these devices will not harm the examinees and the examination staff's body, and will not affect the candidates' normal answers.

Whether any kind of electromagnetic wave emission equipment is harmful to the human body depends on the specific absorption rate of the electromagnetic wave by the human body. The international non-ionizing radiation protection committee has determined that the radio frequency radiation safety standard SAR is up to 2.0, and our country's standard is 1.5. At present, the transmitting power of the transmitting tower of the wireless communication station is generally 40W to 50W, and the specific absorption rate of the human body to the electromagnetic wave is below 1.0 from the transmission tower 20 to 30 meters away. The radio signal shielding equipment used in the examination room is a micro-power equipment. Its transmission power is generally less than 3W, and it is also used in corridors outside the examination room. In this case, the body's specific absorption of electromagnetic waves is minimal. Therefore, the radio signal shielding equipment used in the examination room does not pose a hazard to human health.

Handheld Wireless Stealth Headphone Detector: Let the Stealth Receiver is a type of wireless stealth headset detector that is specifically designed for the use of wireless stealth headsets for cheating in the current examination room exams. Wireless stealth headset is a special technology product, formerly known as "miniature voice prompter", which is mainly used for broadcasting stations and other purposes. Since the invisible headphone receiver is only soy-sized and can be put into the ear canal, it is difficult to find such a product if it is used for examination cheating.

During the test period, the surroundings of the examination room and the surrounding environment of the examination room shall be monitored in all directions. All monitoring stations and monitoring vehicles will enter the state at the appointed time. All radio frequency sections will be comprehensively monitored. Once an abnormal signal is found, it will immediately take signal interference measures. Signal off. In addition, the technicians can also help the relevant authorities to seize the cheating elements according to the directions of the direction-finder.

Some parents of the candidates felt uneasy about this, and they feared that it would affect the normal performance of the children's college entrance examination. In fact, these devices will not harm the examinees and the examination staff's body, and will not affect the candidates' normal answers.

Whether any kind of electromagnetic wave emission equipment is harmful to the human body depends on the specific absorption rate of electromagnetic waves by the human body. The international non-ionizing radiation protection committee has determined that the safety standard of radio frequency radiation SAR is up to 2.0, and our national standard is 1.5. At present, the transmitting power of the transmitting tower of the wireless communication station is generally 40W to 50W, and the specific absorption rate of the human body to the electromagnetic wave is below 1.0 from the transmission tower 20 to 30 meters away. The radio signal shielding equipment used in the examination room is a micro-power equipment. Its transmission power is generally less than 3W, and it is also used in corridors outside the examination room. In this case, the body's specific absorption of electromagnetic waves is minimal. Therefore, the radio signal shielding equipment used in the examination room does not pose a hazard to human health.

Handheld Wireless Stealth Headphone Detector: Let the Stealth Receiver is a type of wireless stealth headset detector that is specifically designed for the use of wireless stealth headsets for cheating in the current examination room exams. Wireless stealth headset is a special technology product, formerly known as "miniature voice prompter", which is mainly used for broadcasting stations and other purposes. Since the invisible headphone receiver is only soy-sized and can be put into the ear canal, it is difficult to find such a product if it is used for examination cheating.

Cheating grams specifically detect the electromagnetic wave emitted by the invisible headphone transmitter and can be accurately positioned so that the wireless invisible earphone is no longer invisible, fundamentally eliminating the illegal use of the wireless invisible earphone in the examination room. Its specific use is as follows:

1, using a microcomputer intelligent design, use invigilators wearing random ear plugs, open the "switch" button for 3 seconds, the system will boot, first self-test, the device will automatically automatically transfer to the working state. After use, long press the "switch" button.

2. During the handshake, the equipment shall be patrolled in the examination room, and at the same time pay attention to whether there is a sound in the earphone (significant current change sound represents a nearby wireless signal transmission device; if there is a speaking sound, it means that someone nearby uses the wireless invisible earphone. cheat).

3. If there is sound, the direction of the equipment should be carefully adjusted, the sound intensity will be changed, and the machine direction will be adjusted to the position where the sound is loudest. At this time, the direction of the yellow arrow of the machine panel is the sound source direction.

4. At this time, the invigilator's hand-held device is approaching the source of the sound, and the sound should be stronger and stronger. If the sound is getting weaker and weaker, it should be approached in the opposite direction. During the approach, the signal indicator will light up and blink, and the number of signal indicators will indicate the signal strength.

5. When a certain range is detected, when there are several students around that cannot be investigated, the mediation "gain" switch (a total of four levels) will reduce the gain level and perform close-range monitoring and precise positioning. After reducing the gain, continue to approach the source of the sound, the sound will gradually increase, and finally will be targeted to a specific candidate, this candidate should be a cheater.

6. You can use the flashlight to check the examinee's ear canal, and you will find that the tiny invisible headphones can usually be sucked directly out of the iron objects.

7. In the process of detecting a fraudulent person, the invigilator may connect other recording equipment to the device to achieve recording and forensics of the cheater.

8. For mobile phones and other wireless communication devices, the device can detect the wireless electromagnetic wave emitted by the communication device, and can output a current change sound different from the normal background noise through the earphone, and this should be in accordance with the above Article 2, 3 Method for detection.