Monday, November 30, 2020

Engineering equipment and equipment shall meet the following requirements:

 Engineering equipment and equipment shall meet the following requirements:


1. For the mobilization of equipment and materials, table a.0.1-1 in Appendix A of this specification or the equipment and material mobilization inspection form provided by the supervision unit shall be filled in. The materials shall be counted and classified according to the construction equipment and material list.


2. During the open box inspection, the name, model, specification, quantity and place of origin of the equipment shall meet the design requirements, the appearance shall be intact, the technical data and accessories shall be complete, and the factory certificate shall be provided.


3. The function and performance of the equipment shall be checked by power on, and the test shall be carried out according to the corresponding current national product standards; if there is no national standard, it shall be carried out according to the contract provisions or design requirements; for the equipment without on-site inspection conditions, the factory test or the organization with inspection ability can be required to test, and the test report shall be issued.


4. The quality inspection contents of hardware equipment and materials shall include safety, reliability and electromagnetic compatibility.


5. The quality of software products shall be inspected according to the following contents:


1) For commercial software such as operating system, database management system, application system software, information security software and network management software, the use license and scope of use shall be checked.


2) The user application software, user configuration software and other application software compiled by the system Contractor shall not only carry out function test and system test, but also carry out capacity, reliability, safety, recoverability, compatibility, self diagnosis and other function tests as required. The software data such as program structure description, installation and debugging instructions, use and maintenance instructions shall be complete.


6 in addition to the provisions of article 1-5, the imported products shall also provide the certificate of origin and commodity inspection certificate; the product qualification certificate, inspection report, installation, use and maintenance instructions and other documents shall be in Chinese or attached with Chinese translation.

camera module M12 connector Construction of video display system

 camera module M12 connector Construction of video display system




5.1 construction preparation M12 connector Construction of video display system


5.1.1 the construction site shall meet the following requirements:


1. The construction object has basically met the entry conditions, and the operation site and safe power consumption should meet the construction requirements. The power supply and consumption at the construction site shall comply with the relevant provisions of the current national standard GB 50194.


2. The reserved pipes, holes, trunking and embedded parts shall meet the design requirements.


3. Various obstacles and sundries affecting the construction shall be removed.


5.1.2 construction preparation shall meet the following requirements:


1. Design documents, construction scheme, construction schedule and construction drawings shall be complete and have been jointly reviewed and approved.


2. The construction personnel shall be familiar with the construction drawings and all relevant data including engineering characteristics, construction scheme, process requirements, construction quality and acceptance standards.


3. The organization should be sound, the post responsibility should be clear, and the engineering guarantee measures should be formulated.


4 equipment, equipment, auxiliary materials, tools, machinery and communication tools shall meet the requirements of continuous construction and stage construction.

Monday, November 16, 2020

the classification of LED video display system shall meet the following requirements:

 Classification and classification of LED video display system


3.1.1 the classification of LED video display system shall meet the following requirements:


It can be divided into indoor display system and outdoor display system according to the use environment.


According to the display color, it can be divided into single primary color display system, double primary color display system and full color (red, green, blue three primary color) display system.


3.1.2 LED video display system can be divided into three levels: A, B and C. The performance and index of all levels of LED video display system shall meet the requirements of table 3.1.2.

AHD Camera Module from jsk technology china

 AHD Camera Module from jsk  technology china



Classification and classification of TV video display system


3.3.1 the classification of TV video display system shall meet the following requirements:


It can be divided into CRT, LCD, PDP and other display systems according to the types of display devices.


It can be divided into single screen TV display system and splicing display system according to the composition and quantity of display screen.




3.3.2 TV splicing video display system can be classified according to the provisions of article 3.2.2 of this specification.