Security terminology

General safety precautions

001 security
Safety protection for life, property, environment, information, etc.
002 security system
A series of systems that work together for the safety protection of the isosceles triangle of life, property, environment, information.
003 alarm
When there is a predetermined danger of life, property, environment, information, etc., a signal or other signal generated in order to attract attention.
004 false alarm (false alarm)
An alarm caused by a non-warning intention.
005 operation signal
A signal indicating the engineering status of the system.
006 tamper device
The purpose of this function is to detect the intentional damage to the security alarm device.
007 Security equipment is intended to prevent crime.
008 burglar alarm system (security and alarm equipment)
Manual or automatic alarm equipment used to prevent crime.
009 normal close (normally closed state)
In the alert state, the contact of the system alarm output part is "closed".
010 normal open (normally open state)
In the alert state, the contact of the system's alarm output component is "open".
011 signal transfer output (alarm output)
When an alarm occurs, contact signals or other signals output from the alarm controller to peripheral devices.
012 online alarm system
A system that transmits alarm signals in real time via communication lines and is monitored by centralized monitoring equipment such as security companies.
013 sensitivity margin
When the environment of the detector installation site deteriorates, the sensitivity margin reserved for the detector to maintain normal control and measurement status.
014 intruder alarm system
A system that detects intruders and generates alarms.
015 guard line
Generic term for basic warning line and refined warning line.
016 alarm response time (alarm response time)
The time from when the alarm controller receives the alarm signal of the detector to when the alarm state is formed.
017 detection response speed
The time from the detection of the abnormal signal by the detector to the output of the alarm signal.
018 detection sensitivity
A performance indicator that illustrates the responsiveness of the detector to the amount of input detected.
019 detection distance
The maximum distance that the detector can detect abnormal state.
020 detection zone
The maximum range in which the detector can detect abnormal conditions.
021 alarm failure
True alarms that have not been delivered.
022 beam teception gain
In an optical detector, the magnification of the light-receiving part.
023 entry / exit delay time function (entry / exit delay time function)
At the time of entry / exit, the defense system shifts to the start time of the alert or the time of the release of the alert and the time delay function is given.
024 zone indication
In the warning area, the output status of each detector is indicated on the alarm controller.
025 local alarm system (closed alarm system) (local alarm system)
When there is an alarm in a building or facility, only the system that issues an alarm inside.
026 not false alarm (true alarm)
An alarm that meets the intent of the alert.
027 not false alarm type1 (a type of true alarm)
The alarm caused by the detector.
028 not false alarm type2 (second type true alarm)
An alarm caused by an artificial operation of the emergency button.
029 status signal failure (loss report)
Status signal that has not been delivered.
030 false alarm type1 (a type of false alarm)
Alarm caused by machine failure.
031 false alarm type2 (Second type false alarm)
Alarm caused by poor design, construction and maintenance inspection.
032 false alarm type3 (three types of false alarms)
Alarm caused by misoperation.
033 false alarm type4 (four types of false alarms)
Alarms caused by animals, plants, natural environment, etc.
034 false alarm type5 (five types of false alarms)
An alarm of unknown cause.
035 burglar signal (security signal)
Signals related to safety precautions.
036 status signal (normal signal)
A signal that occurs in a normal state.
037 false status signal (error signal)
Signals that an error condition has occurred.
038 alarm signaling operation (alarm output)
The detector caught an abnormal signal.
039 announciator (indicator)
An indicating device that can indicate that someone has left the scene.
040 encryption (password)
In order to keep secrets, only the special signals that the parties know, stipulate and amend are limited.
041 access control system (access control management system)
A system to manage access to specific places.
042 unlock
The act of unlocking the lock function of doors and windows.
043 home security system
In the home (residential), a system that detects disasters and intruders and generates alarms.
044 central station
A place where alarm signals are centrally managed with the help of communication lines.
045 alarm dispatching
According to the instructions of the police center, dispatch police officers to the scene of the police.
046 alert area (warning area)
Areas distinguished by warning lines.
047 car security system
For the purpose of preventing the theft of cars, a protection system consisting of sensors and a host.
048 lock
The act of implementing the lock function of doors and windows.
049 line guarding
The alerting method in which the alert range is linear.
050 point guarding
The warning method is limited to very narrow places (points).
051 face guarding
The alerting method of the alert range in the horizontal or vertical direction.
052 space guarding
Space alert method.
053 disalert condition (disarmed condition) (disarmed condition)
The system has entered a state where the detector detects an abnormality but does not trigger an alarm.
054 alert condition (armed condition)
The system enters an alert state, and the detector detects an abnormality and can trigger an alarm state.

Security guard terminology

001 detector
Machines that detect abnormal conditions such as intrusions and generate alarms.
002 sensor
Identify the part of the state change in the detector.
003 ultrasonic Doppler detector
The use of ultrasound to detect intruder machines.
004 infrared beam interruption detector (active infrared detector)
A machine that uses an infrared beam to be blocked to detect an intruder.
005 vibration switch
Machines that detect vibration and shock.
006 glass break detector
Detector that generates natural frequency vibration when the glass breaks or breaks.
007 magnetic contact
It is composed of an independent permanent magnet part and a switch part. A device that opens or closes the contact due to the proximity or departure of the two.
008 passive infrared detector
Use the difference between the far infrared energy radiated from the background and the intruder's body to detect the intruder's machine.
009 shutter detector
Detects machines with rolling door opening or closing.
010 emergency switch
A switch that triggers an emergency alarm by hand or foot. (Such as emergency button, kick switch, switch, etc.)
011 video motion detector
A device that detects a predetermined amount of change from the image signal captured by the camera and outputs an alarm signal within a set range.
012 tilt-switch sensor
When the sensor is tilted above a certain angle, the device that turns on the switch. Used for cash boxes, safes, etc.
013 close-circuit television, closed-circuft televishon (closed-circuit television monitoring system)
A cable system that monitors images captured by surveillance cameras with a TV monitor and implements real-time monitoring.
014 microwave dopper detector
Use microwaves to detect intruder machines.
Terminology for safety precautions
001 key switch
A switch that opens or closes contacts with a key.
002 adapter (converter)
Relay device that matches the signal form when connecting the detector and various devices to the alarm controller and notification device.
003 remote control switch (enter / exit operator)
Entry / exit is a device that puts all or a part of the system in the alert state or the release state.
004 warning device (deterrent)
A device that notifies them in the form of sound or light when there are abnormal conditions, so that the intruder is frightened.
005 electric lock
Locks that are locked or unlocked by electrical control signals.

Safety engineering terminology

001 fundamental guard lines
When guarding the protected target, it is determined as the guarding range of the basic defense.
002 guarding area
In the entire guard area, the range detected by each detector is also called detection range or guard area.
003 guarding method
When guarding a protected target, the general name of the four basic guarding methods determined. That is, there are four methods: point alert, line alert, face alert and space alert.
004 subdivide guard line
For the convenience of design, the basic warning line is decomposed into a warning line.
005 first guard line
In the part of the project base, the basic security lines installed and the security lines formed after decomposition are: G1-1 (for external use of the base), G1-2 (for the entrance and exit of the base) and G1-3 (inside the base).
006 second guard line
In the peripheral part of the building, the basic warning lines installed and the decomposed warning lines are: G2-1 (outer periphery), G2-2 (opening) and G2-3 (access and exit).
007 third guard line (third guard line)
In the inner part of the building, the basic security line is installed. The security lines formed after decomposition are G3-1 (inside the house), G3-2 (the wall of the lock room) and G3-3 (the opening of the lock room) , G3-4 (the entrance and exit of the lock room), G3-5 (the interior of the lock room).
008 fourth guard line (4th guard line)
The basic warning line for the important target, after the decomposition constitutes the warning line: G4-1 (possible moving target and G4-2 (impossible moving target).

Safety equipment terminology

001 local alarm unit or control panel (general)
A device that receives detection signals and controls them. [Features]
(1) Indication (2) Alarm output (3) Deterrence control (4) Power supply part (5) System control.
002 sub monitor (sub control panel)
The device in the alarm controller that performs the secondary function. [Features]
(1) Instruction (2) Deterrence control (3) Power supply part (4) System control (including no 3, 4 devices).
003 check box (loop indicator)
Accept the signal of the detector to instruct the system to alarm the defense zone.
004 digital transmitter communicator (digital transmission communicator)
Use telephone lines and other devices that mainly use symbols to automatically transmit alarm signals (including devices with terminal control functions for centralized monitoring devices)
005 alarm receiving center (IEC), center machine (* center-center) (central monitoring device)
N: 1 device at the receiving end of the alarm receiver. (Contains devices with control functions and information processing functions).
006 communicator, voice transmitter
A device that automatically transmits an audible alarm signal using a general telephone line.
007 power unit
A device that powers equipment (including detectors) used in the system.
008 industrial television camera
A device that captures images displayed on a monitor and monitors them in real time.
009 electric lock controller
Controller with electronic lock function.
010 card reader (card reader)
A device that reads information in a recording card.
011 time lapse imaging recorder
Professional long-term video recorder.
012 pinhole camera
In order not to make the monitored person notice, install a camera with a small aperture head.
013 monitor
A device that converts the image signal taken by a camera into a visible picture.
014 standby power (standby power supply)
Power supply device that prevents normal operation of the alarm device when the power supply fails once

Short name is Chinese

CCVE－－Closed Circuit Video Equipment－－Closed Circuit Video Equipment
CCTV －－Closed Circuit Television－－Closed Circuit Television
VTR －－Video Tape Recorder ELC Electronic Light Control
BLC Black Light Compensation-invisible light compensation, backlight compensation
W / B-White Balance-White Balance
ALC －－Automatic Light Control －－Automatic light compensation, automatic glow correction, backlight compensation, backlight compensation
S / NRatio-Signal-to-Noise Ratio-signal-to-noise ratio
LCD －－Liqudified Crystal Display－－Liquid crystal display
DSP －－Digital Signal Processing －－Digital Signal Processing
VDA-Video Distruibuting Amplifier-Video Distribution Amplifier
CCD-Charge CoupLED Device-charge coupled device: charge coupled device is a new type of semiconductor device
AGC-Automatic Gain Control-Automatic Gain Control

UL certification terminology list (transfer)

"AL" LISTING (multiple listing or approval)
AGENT (agent)
APPEALS PROCEDURE (appeal procedure)
APPENDIX (attached page)
APPLICANT (applicant)
AUTHORIZATION PAGE (authorization page)
CATEGORY CONTROL NUMBER (category control number)
COMPONENT (parts)
CONDITION OF ACCEPTABILITY (applicable conditions)
CONTROL NUMBER (control number)
FACTORY IDENTIFICATION (factory identification)
FACTORY INSPECTION (Factory Inspection)
"AL" LISTING, CLASSIFICATION OR RECOGNITION (multiple listing or recognition) The applicant applies for and authorizes the listing or recognition service established in the name of the other party different from the applicant (listed person)
AGENT (Agent) Entrusted by the applicant to engage in activities with UL in the name of the applicant
APPEALS PROCEDURE (appeal procedure) If the customer has different opinions on the results of engineering testing or follow-up inspection, they can discuss with the relevant engineer or on-site representative without worrying about jeopardizing future conclusions. If a satisfactory response cannot be obtained at this level, the client can appeal to a higher level until the president.
APPENDIX (attached page) Part of the rules, including the responsibilities of the factory and on-site representatives and the requirements for related tests. It may also describe the testing of samples sent to UL.
APPLICANT (Applicant) The company or individual applying to UL to test its components, products or systems. Legally, this party will be responsible for the cost of testing and tracking services, and has the right to all information related to the results of the test. See also agent.
AUTHORIZATION PAGE (authorization page) is filed on the front page of the tracking service factory inspection rules to authorize the corresponding tracking inspection service (type L or R) and allowed certification marks

CATEGORY CONTROL NUMBER (CCN) (category control number) The character representation of different product categories in UL listing, recognition and classification services. For example, AVLV2 means electronic wire; QOWZ means portable lamp. Generally, XXXX is a listed product, XXXX2 is an approved product, XXXX7 is a listed product that complies with Canadian standards, and XXXX8 is an approved product that complies with Canadian standards.
A part of a COMPONENT product, in addition to participating in the testing of the entire product as part of a complete product, also needs to test its performance and / or structure separately. Parts can be listed, approved or non-listed parts.
CONDITION OF ACCEPTABILITY (applicable conditions) These items are listed in the report of approved or non-listed parts, but are not used as the basis for inspection by on-site representatives. Based on the test results, these items indicate the limitations and conditions when the component is used in a complete product. For example, in a switch report, it may be indicated in "Applicable Conditions" that the product is only suitable for currents below 1A or temperatures below 125C.
CONTROL NUMBER (Control Number) One of the four possible components of the UL approval mark, designated by UL. According to different product categories and different types of tracking services, the control number may be changed regularly.
FACTORY IDENTIFICATION (factory identification) is used by manufacturers who produce the same product in different factories to identify a mark used to distinguish a product is produced in which factory.
FACTORY INSPECTION (Factory Inspection)

Topic: Professional terminology about lenses

aberration: A factor that adversely affects imaging in an optical system. The design of any optical system is dedicated to correcting various aberrations with different methods, such as: spherical aberration and chromatic aberration, vignetting, coma and distortion.
agc automatic gain control: This is a built-in function used to automatically adjust the gain level.
alc control Automatic light compensation: An automatic aperture setting, so that bright subjects will not affect the overall exposure. Adjusting to the peak (weakening) direction will increase the sensitivity; when set to averade (average) the sensitivity will decrease. Average is the general factory setting.
angle of view: The diagonal angle of the field of view taken by the camera lens is called the angle of view. Usually wide-angle lens has a larger angle of view;
The telephoto lens has a narrower angle of view.
Aperture: Originally means the opening of the lens. Generally refers to a device that controls the opening of the lens to control the amount of light passing through the lens. The size of the aperture can be fixed or variable. The size of the aperture also determines the depth of field. The use of a smaller aperture (such as f / 11 f / 16) tends to have a larger depth of field.
aspect ratio: refers to the aspect ratio of the shooting screen, the general 135 camera is 24x36mm, and the aspect ratio is 2: 3
aspherical lens: An optical element containing an aspherical surface. At present, there are a variety of methods for manufacturing aspheric lenses, such as: die casting molding, injection casting, composite molding, etc. These processes rely on high-precision manufacturing technology. Tamron has successfully developed a compound aspheric lens-a high-precision mold manufacturing and lens coating technology.
back focus (back focal distant): The distance from the second principal point of the optical element to the focal plane.
Barrel: A barrel-shaped structure in which lenses and other components are installed.
bbar multi-coating: Tamron's unique bbar multilayer coating. bbar is broad-band anti-reflective, which means wide frequency anti-reflection. Tamron has a technology of coating a very thin anti-reflection layer on the surface of the lens, which can greatly improve the sharpness and color reproduction ability of the lens.
depth of field: The clear area in front of and behind the focused subject.
field of view: The largest area captured through the lens.
finder: The viewfinder on the camera. Through it, the photographer can easily compose the picture.
fixed focal length: This lens has only a single focal length.
fixed focus (pan focus) fixed object distance: the shooting object distance of this lens is fixed, and does not provide focus adjustment capability.
flank back (flange back focal distance): The distance from the lens mounting plane to the focal plane.
f-number (f / #): f value, indicating the aperture size.
focal length: focal length of the lens
lens shade: lens hood
low dispersion (ld) hybrid aspheric element: low dispersion lens, this is a special optical material, referred to as ld. The role of the ld lens is to overcome the inherent dispersion of the lens.
minimun object distance: shortest focusing distance, abbreviated as: mod
Off-the-film-metering focal plane metering: This is an advanced metering method on the camera. The metering element reads light data directly from the focal plane.
quad cam zoom: 4 cam zoom mechanism. This is the zoom mechanism first adopted by Tamron on its af28-300 lens.
vignetting: The black corner phenomenon at the 4 corners of the screen.
wide angle lens: wide angle lens.
zoom lens: zoom lens
zoom rati Zoom magnification.