Overload alarm system based on Internet of Things
An alarm system and Internet of Things technology, applied in the field of Internet of Things, can solve the problems of high alarm and high cost, low manhole cover strength, troublesome overload detection, etc., and achieve the effects of good integrity, reduced construction, and reduced costs
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0022] An overload alarm system, including a manhole cover, a server, such as figure 1 As shown, the well cover includes a cylindrical cover body 5, the cover body is provided with a lifting hole 50, and the lifting hole can be used to lift the well cover after putting in the lifting handle. A normally open button 51 is arranged on the edge of the bottom surface of the cover body. The normally open button is in an open circuit or disconnected state when not being squeezed, and is in a closed or closed circuit state when being squeezed. A battery, a controller and a WIFI module are set in the cover, and a pressure sensor is set on the surface of the cover. The controller is connected with the battery, the normally open button, the WIFI module, and the pressure sensor. The controller is used to send and receive WIFI signals and Send the pressure sensor signal, the normally open button signal and the manhole cover number to the server. When the present invention is in use, the W...
Embodiment 2
[0029] A light-weight high-strength manhole cover. In this embodiment, the structure of the light-weight high-strength manhole cover is similar to that of the light-weight high-strength manhole cover in Example 1. They are all connected in series by wire ceramsite. The difference is that the concrete is prepared The ratio of the parts by weight of the raw materials is different. In this embodiment, the raw materials for preparation include the following parts by weight:
[0030] Cement: 50 parts, sand: 25 parts, fly ash: 25 parts, ceramsite 50 parts;
[0031] Wherein, the diameter of the ceramsite is 3-5 cm.
[0032] The pouring process of the lightweight high-strength manhole cover is:
[0033] Prepare the following preparation raw materials in parts by weight: cement: 50 parts, sand: 25 parts, fly ash: 25 parts, ceramsite 50 parts, foaming agent 1 part;
[0034] Wherein, the diameter of the ceramsite is 3-5 cm, and the ceramsite has three through holes through which metal ...
Embodiment 3
[0042] A light-weight high-strength manhole cover, the light-weight high-strength manhole cover is cast from ceramsite concrete, and the preparation raw materials of the ceramsite concrete include the following materials in parts by weight:
[0043] Cement: 40 parts, sand: 30 parts, fly ash: 20 parts, ceramsite 40 parts;
[0044] Wherein, the diameter of the ceramsite is 1-3 cm, the concrete structure also includes a metal wire, the ceramsite has a through hole for the metal wire to pass through, and the metal wire passes through the through hole and connects two or more of ceramsite.
[0045] The preparation process of the lightweight high-strength manhole cover is:
[0046] Prepare raw materials for preparation, which include the following materials in parts by weight: cement: 40 parts, sand: 30 parts, fly ash: 20 parts, ceramsite 40 parts, foaming agent 0.5 part;
[0047] Mix the cement, sand, fly ash, foaming agent and 25 parts by weight of water in the raw materials to ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More 