Entries by administrator

The development trend of security system

1. HD application In recent years, “HD whirlwind” has become a popular word in the entire security system, and the concept of HD is also deeply rooted in the hearts of the people. With the high-definition concept proposed by relevant monitoring manufacturers, this is not only a single security product, but a complete set of […]

What is a security system

The full name of the security system is the security system, which is a system composed of security products and other related products, such as intrusion alarm systems, video security monitoring systems, access control systems, explosion-proof security inspections, etc.; or these systems are combined as subsystems or Integrated electronic system or network. The security system […]

The efficacy of beauty equipment

1. Improve relaxation and puffiness, small face effect 2. Improve skin transparency and elasticity 3. Prevent wrinkles 4. Whitening, preventing spots 5. Add moisture 6. Promote metabolism 7. Shrink pores and treat acne

Classification of technical principles of beauty equipment

1. Current, electric pulse mode: Using micro-current pulse modulation technology, it acts on human skin, meridians and acupuncture points to achieve the purpose of firming, wrinkle removal and beauty. These devices include medium and low frequency therapeutic instruments and meridian instruments in the rehabilitation medical industry, as well as HPT health preservation instruments, acid discharge […]

Basic knowledge of medical devices

The concept of medical devices: Refers to the instruments, equipment, appliances, materials or other items used alone or in combination on the human body, including the required software. Its effect on the human body surface and in vivo is not obtained by pharmacological, immunological or metabolic means, but these means may be involved and play […]

What is an automatic control system

Automatic control technology: Use the control device to make the controlled object work according to the predetermined technical requirements under the condition that no one is directly involved. Or: use external equipment or devices (control devices, controllers) to make a certain working state or parameter (controlled quantity) of a machine, equipment or production process (controlled […]

Several key factors to consider for outdoor flashlights

1. Light output: In lumens (LM), it represents the energy collection of light at all angles emitted by the flashlight light source. The light output of different flashlights varies from 20 lumens for reading to thousands of lumens. 2. Beam distance: in meters (m), it indicates the distance from the origin of the beam to […]

Introduction of flashlight

Torch: also referred to as torch, is a handheld electronic lighting tool. A typical flashlight has a battery-operated bulb and focusing mirror, and has a handle-style housing for handheld use. Although a fairly simple design, it wasn’t invented until the late 19th century because it had to combine the invention of the battery with the […]