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Anonymous users2024-02-13If the unit has the conditions, it can be programmed to play automatic experiments on the host.
The format of the linkage formula.
The linkage formula is a logical expression used to define the linkage relationship between the alarm device and the controlled device in the system. When the detection device in the system alarms or the status of the control module changes, the controller can automatically perform "immediate start" or "delayed start" operation on the controlled device according to these logical expressions. The linkage formula of this system is divided into two parts before and after the equal sign, and the front is the condition, which is composed of user code, device type and relationship operator; The following is the device to be linked, which consists of the user code, device type, and delayed startup time.
Example 1: 010011 03 + 020011 03 = 010012 13 00 010013 19 10
Expression: When the No. 010011 point smoke detector or No. 020011 point smoke detector alarms, the No. 010012 signal starts immediately, and the No. 010013 smoke extractor starts with a delay of 10 seconds.
Note: 1) The devices before and after " " in the linkage formula are required to be composed of user code and device type, and the type cannot be default.
2) There are two kinds of relationship symbols: "and" and "or", where "+" represents "or", "stands for" and".
3) The delay time of the linkage device behind it is 0 99 seconds, which is not a default, if there is no delay, you need to enter "00" to indicate it.
4) Wildcards are allowed in the linkage formula.
Represented by "*", it is used instead of any number between 0 and 9. Wildcards can appear in both the conditional part of the formula and the linkage part to rationally simplify the linkage formula. When it appears in the condition section, there is an implicit "or" relationship between such a series of devices, e.g. 0*001315 represents :
01001315＋02001315＋03001315＋04001315＋05001315＋06001315＋07001315＋08001315＋09001315＋00001315；In the linkage part, such a group of devices is described.
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Anonymous users2024-02-12How fire alarms are coded.
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Anonymous users2024-02-11A programming language is a standardized communication technique used to give instructions to a computer, define a computer program, and enable the programmer to define exactly what data the computer needs to use, and precisely define the actions that should be taken in different situations. Programming languages can be divided into three categories: machine languages, assembly languages, and high-level languages. Thousands of different programming languages have been invented in the field of computing, and new ones are still being created every year.
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Anonymous users2024-02-10Programming languages are high-level computer languages that are designed to be easy for programmers to understand and use. But strictly speaking, computer hardware can only understand a very low-level programming language called machine language.
In order to effectively avoid all the factors that affect the delivery of instructions to the computer, computer scientists have designed symbols that have their own meanings and are not ambiguous between them, and they are often called programming languages. Each construct in a programming language has a fixed usage format (called syntax) and a precise meaning (called semantics). In other words, a programming language specifies a set of rules for writing instructions that a computer can understand.
Traditionally, we refer to this instruction as a computer, and the process of writing an algorithm in a programming language is called coding.
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