一、Scheme overview

According to the different prevention areas of each user unit (high school entrance examination, college entrance examination, CET-4 and CET-6 examination, graduate examination, civil servant examination, personnel examination, etc.) in accordance with the corresponding protection requirements, in line with local conditions, active and prudent, pragmatic, strict requirements and confidentiality principles, focusing on reality, in order to effectively improve work efficiency and create a safe environment, To achieve the goal of "people-oriented, science and technology management" and designed the prevention system.

In order to prevent students from carrying illegal cheating equipment, intelligent security gates and metal detectors should be installed at the entrance of the examination room. As the first line of defense, the intelligent security door can filter large electronic devices and mobile phones, do not alarm those whose preset metal content is not up to the standard, and alarm those whose preset metal content exceeds the standard, prompting the inspector to re-check with a handheld metal detector. The metal detector is highly accurate and can double check the tiny cheating devices missed in the initial inspection, ensuring that all metal-containing electronics are filtered.

In order to ensure that cheating signals cannot enter the examination room, prevent cheating devices from playing a role, and for cheating devices that are pre-placed in other locations of the examination room area and are extremely difficult to find, the examination room is equipped with a wireless signal blocker to fully cover the wireless signals in the examination room, so that the wireless receiving devices that enter the examination room cannot receive external cheating wireless signals. To purify the discipline of the examination room, the role of fair examination results.

二、Standardized test room anti-cheating technical prevention scheme configuration

In the standardized test room, according to the test process, anti-cheating techniques are mainly divided into two areas. They are: the technical defense outside the examination room and the technical defense inside the examination room.

三、Skills outside the examination room

3.1 Intelligent security gate

First of all, candidates and teachers through the intelligent security gate, the intelligent security gate will pass the metal detection, and its sensitivity can be set, can also choose different modes according to the use of the environment, the mode has been independently set the sensitivity. When someone carries a mobile phone through, the intelligent security door will issue an alarm prompt, at this time, the inspectors will use other means for further accurate inspection. For those who have excluded the mobile phone, a secondary check will be carried out until the smart security door no longer alarms, and for those who do not carry a mobile phone, the smart security door will not alarm, they can pass directly.

【Configuration product】：29 inch LCD screen intelligent security door

【Configuration product】：9 inch LCD screen intelligent security door

3.2 Metal detector

Candidates and teachers through the mobile phone detection door security check, should go to the fine personal security screening area for personal testing. They will be re-inspected by security personnel using hand-held metal detectors and shoe metal detectors. Once the detector is found to be carrying prohibited electronic devices, it will immediately issue an alarm, prompting the inspectors to conduct a second personal inspection of the inspected personnel to further rule out the possibility of carrying cheating devices into the country. During the reinspection process, if the items found are not suspicious, they will be deemed safe and released; If the item is identified as suspicious or fraudulent, it will need to be screened again.

【Configuration product】：Hand metal detector

【Configuration product】：Sole metal detector

四、Skills in the examination room

Cheating techniques are shielded

According to the national standardized test room construction standards, standardized test rooms must be equipped with signal blockers to shield wireless signals. At present, the signal blockers used in test rooms are generally mobile phone signal blockers and full-band wireless signal blockers.

【Configuration product】：Mobile phone signal blocker, wireless signal blocker, etc.

五、Anti-cheating technology and equipment introduction

5.1 Technical equipment outside the examination room

5.1.1【Product】：29 inch LCD screen intelligent security door

一、Smartphone door detection features：

1.1,   the use of electromagnetic induction principle, to obtain the material information of the tested metal items, while integrating weak signal detection technology,

precision filtering technology, digital signal processing technology, through different dimensions of the tested object comprehensive intelligent analysis and comparison

of product database, so as to achieve the separation of contraband and daily products.

1.2,   can exclude coins, glasses and other daily items interference, accurately identify mobile phones, computers and other classified electronic products, while detecting

and controlling knives, guns and other contraband, and alarm items classified display.

1.3,   the detection speed is fast: the detection speed is only 1-2S, and the number of people passing is ≥40 per minute.

1.4,   high accuracy: the detection rate is greater than 95%.

二、Detection range (mode optional)：

2.1 Mode 1: daily use mode (mobile phones, watches, keys and related digital electronic products).

2.2. Mode 2: Contraband detection mode (control knives, guns, metal pipes, metal steel pipes, etc.).

2.3, Mode 3: Custom mode, in this mode, a total of tools, knives and guns, stainless steel cups, steel pipes, aluminum block copper block gold bar, aluminum cans,

electronic products, watches, belts, large stainless steel 9 categories, can be customized according to different customers, different detection environment requirements

and the need to focus on the detection of items, whether the alarm is set.

三、Basic parameter：

Detection area: 18 independent detection locations

Sensitivity: 0-999

Internal channel dimensions: < 1989(H) x 720(W) x 650(D)mm

Overall external dimensions: < 2420(H) x 970(W) x 650(D)mm

Weight: about 150kg

External power supply: 187V/ 220V-50/60Hz

5.1.2【Product】：9 inch LCD screen intelligent security door

一、Smartphone door detection features：

1.1, the use of electromagnetic induction principle, to obtain the material information of the tested metal items, while integrating weak signal detection technology,

precision filtering technology, digital signal processing technology, through different dimensions of the tested object comprehensive intelligent analysis and comparison

of product database, so as to achieve the separation of contraband and daily products.

1.2, can exclude coins, glasses and other daily items interference, accurately identify mobile phones, computers and other classified electronic products, while detecting

and controlling knives, guns and other contraband, and alarm items classified display.

1.3, the detection speed is fast: the detection speed is only 1-2S, and the number of people passing is ≥40 per minute.

1.4, high accuracy: the detection rate is greater than 95%.

二、Detection range (mode optional)：

2.1 Mode 1: daily use mode (mobile phones, watches, keys and related digital electronic products).

2.2. Mode 2: Contraband detection mode (control knives, guns, metal pipes, metal steel pipes, etc.).

2.3, Mode 3: Custom mode, custom mode, in this mode, a total of tools, knives and guns, stainless steel cups, steel pipes, aluminum block copper block gold bar,

aluminum cans, electronic products, watches, belts, large stainless steel 9 categories, according to different customers, different detection environment requirements

and the need to focus on the detection of items, whether the alarm for custom Settings.

三、Basic parameter：

Detection area: 18 independent detection locations

Sensitivity: 0-999

Internal channel dimensions: 1980(H) x 760(W) x 600(D)mm

Overall external dimensions: 2200(H) x 870(W) x 600(D)mm

Weight: about 75kg

External power supply: 220V-50/60Hz (The external power supply can be equipped with the corresponding battery according to the demand)

5.1.3【Product】：Hand metal detector

一、Handheld metal detector features：

1.1, digital design, strong anti-interference ability.

1.2, stable performance and good consistency, no periodic correction.

1.3, high sensitivity (three grades optional).

1.4, vibration, sound, vibration and sound 3 alarm modes.

1.5. Detection mode of ferrous and non-ferrous metals

二、Basic parameter：

Size: 360mm (L) ×82mm (W) ×42.5mm (H)

Weight: 0.30kg

Operating temperature: -25℃ ~ +60℃ (Humidity: 0 ~ 95%)

Material: Shock-resistant, impact-resistant ABS plastic

5.1.4【Product】：Sole metal detector

一、Sole metal detector function features：

1.1, fast pass: barrier-free detection, directly through the detection, under normal circumstances, the rate of one second to detect a person.

1.2, metal content display: according to the detected metal size, the metal content display can display the real-time detected metal content through the blue bar.

1.3, strong adaptability: there is no requirement for the standing posture and shoe size of the inspected personnel.

1.4, digital detection: automatic counting statistical accumulation when the alarm, and can clear the existing count (turn off the power number is still retained, manual

reset, you can clear).

1.5, the volume is adjustable: there is a volume adjustment knob, according to the needs of the scene can be adjusted at will.

1.6, waterproof design: indoor and outdoor can be safely tested (need to prevent exposure to sunlight and heavy rain).

二、Basic parameter：

Overall dimensions: 495(L) × 365(W) × 95(H)mm

Net weight: about 2kg

Weight: 300kg

Power supply: DC12V

Operating temperature: -5℃~+50℃

5.2 Technical defense equipment in examination room

5.2.1【Product】：Signal blocker

一、Function characteristics of signal blocker：

1.1, interference ability: shielding 2 G / 3 G / 4 G / 5 G / 2.4 G / 5.2 GWIIFI / 5.8 GWIFI frequencies, can also according to customer request custom frequency (such as

walkie-talkie UHF/VHF section, etc.).

1.2, the use of the latest chip components and integrated circuit composition, with advanced performance, easy installation and use, the use of air flow hole and active

heat dissipation design, to ensure long-term continuous work and other characteristics.

1.3, the average transmission power of each way is more than 7W, and the effective shielding distance is 1-30 meters (depending on the signal strength of the use place).

1.4, the equipment with the corresponding LED work indicator, in order to observe whether the machine is working normally.

1.5, built-in silent fan to ensure no noise interference in the examination room environment.

1.6, customizable functions: The device can add LED LCD screen, automatic detection system, automatic signal detection after startup, detection of machine voltage,

current, temperature, signal normal or not.

1.7, customizable functions: optional network control, intelligent shielding management system can control the switch of the device, timing switch.

二、Performance index：

5.2.2【Product】：Signal blocker

一、Function characteristics of signal blocker：

1.1, the full frequency aluminum alloy external ten-channel high-gain antenna signal blocker is our company using foreign advanced technology IC amplifier, can

shield all the cheaters on the market signal blocker

1.2, effective shielding CDMA/GSM/DCS / / WIFI / 3 g / 4 g 5 g / 5 g of radio, film and television and other mobile signal.

1.3, effective shielding diameter: 5-40 meters. (Depending on the network status of each operator at the required shielding site).

1.4, twist the corresponding antenna, turn on the power supply can work stably.

1.5, equipped with 1.5 meters power cord, can be conveniently placed on the table.

二、Performance index：