As shown in the above table, the temperature suddenly rises from 51 degrees to 57 degrees in the second to third seconds, the instantaneous change rate data is 11.76% and exceeds positive 5% in the sudden change determination condition 321, which indicates that the detection data 221 of theelectromechanical device 200a suddenly changes, and in this case, suddenly rises. The suddenchange determination unit 32 determines that theelectromechanical device 200a has a sudden change event and sends a sudden change alarm signal. Therefore, the invention has the effect of preventing the electromechanical device from generating abnormity in advance. Theelectromechanical device 200a may be a water pump and a sudden temperature rise may indicate that water has been drained and that the water pump is pumping sand, soil, stones, etc.

The sensed data 221 may also be voltage, current, or vibration, which may indicate a problem with a power system supplying power to the electromechanical device when the voltage is suddenly changed. When the current suddenly changes, it may indicate that the coil and the insulator inside the electromechanical device are damaged. The vibration quantity can detect whether the electromechanical device is not centered, the severity of vibration, unbalance, foundation deformation, soft feet and the like. The instantaneous change rate data can be percentage or numerical value, and usually, the current, the voltage and the temperature adopt percentage, and the vibration quantity adopts numerical value.

In other embodiments of the present invention, the detection data 221 may also be compared with each of the sequentially sampled detection data groups, taking the above table as an example, the detection data 221 of the 5 th second may be sequentially compared with the 1 st second, the 2 nd second, the 3 rd second and the 4 th second to analyze the instantaneous change rate data, when any one of the instantaneous change rate data exceeds plus or minus 5%, the detection data 221 of theelectromechanical device 200a is suddenly changed, which is more sensitive in judgment conditions and can completely achieve the prevention effect. In addition, the transient variation rate data of any two or more of them may exceed plus or minus 5%, indicating that the detected data 221 of theelectromechanical device 200a suddenly varies. This further ensures that theelectromechanical device 200a is substantially abrupt, not because of any factor that does not affect the electromechanical device. In practice, the sequentially sampled detection data group can be sampled to 60 seconds of detection data 221 at most.

Themobile communication device 5 is communicatively connected to the sudden changejudgment warning module 3 and the

electromechanical devices

200a, 200b, and 200c, is carried by a mobile maintenance personnel for receiving sudden change warning signals, and includes a positioning module 51, acontrol module 52, and a wireless communication module 54. Thecontrol module 52 further includes aposition determination unit 521 and atouch display unit 522.

The positioning module 51 records a work area zone coordinate 511 of the work areas WA1, WA2, WA3 for positioning themobile communication device 5 to obtain a communication device position coordinate 512. In the present embodiment, work area section coordinates 511 include work area section coordinates of work area WA1, work area section coordinates of work area WA2, and work area section coordinates ofwork area WA 3.

Theposition determining unit 521 is electrically connected to the positioning module 51 and configured to determine whether the position coordinate 512 of the communication device is outside the working area interval coordinate 511.

Thetouch display unit 522 displays a map data 5221, the map data 5221 displays area images WAC1, WAC2, and WAC3 (shown in fig. 2) of the working area interval coordinates 511 and a coordinate point image ME (shown in fig. 2) of the communication device position coordinates 512, and displays an operation interface 5222 of the electromechanical device generating the snap event when the mobile maintenance personnel touches the area image (WAC1) corresponding to the electromechanical device generating the snap event (such as theelectromechanical device 200a in the embodiment), so that the mobile maintenance personnel can operate the electromechanical device to transmit an operation signal.

In the present embodiment, the

electromechanical devices

200a, 200b, and 200c are electrically connected to an operation signal transceiving interface 300. The wireless communication module 54 is electrically connected to thetouch display unit 522, so as to transmit the control signal to the electromechanical device (such as theelectromechanical device 200a in the present embodiment) having the sudden change event through the operation signal transceiving interface 300.

Referring to fig. 1A to fig. 3, fig. 2 is a schematic diagram illustrating a position determination unit of a control module of a mobile communication device of an automatic sudden change detection alarm system according to a preferred embodiment of the present invention; FIG. 3 is a schematic diagram of a touch display unit of a control module of a mobile communication device of an automatic sudden change detection and warning system according to a preferred embodiment of the invention.

As shown, whenmobile communication device 5 receives the sudden change alert signal,position determination unit 521 determines whether communication device position coordinates 512 are outside of the workspace coordinates 511. In the present embodiment, the communication device position coordinates 512 are located in the coordinate point image ME outside the work area section coordinates 511.

Therefore, thetouch display unit 522 of thecontrol module 52 displays a map data 5221, and the area images WAC1, WAC2, and WAC3 of the work area section coordinates 511 and the coordinate point image ME of the communication device position coordinates 512 are displayed on the map data 5221. When the mechanic selects the area image WAC1, the operation interface 5222 of theelectromechanical device 200a with the sudden change event is displayed for the mechanic to operate to transmit the operation signal, so as to directly and remotely control theelectromechanical device 200a with the sudden change event, thereby achieving the effect of remotely and immediately controlling the electromechanical device with the sudden change event.

Generally, the control signal is transmitted to the gateway, and the gateway transmits the control signal to a controller (usually a PLC) of the electromechanical device, so as to control the electromechanical device.

In summary, the automatic sudden change detection and alarm system provided by the present invention can generate a sudden change alarm signal when the electromechanical device has a sudden change, and remotely control the electromechanical device having a sudden change event by the mobile communication device.

Compared with the prior art, the electromechanical device needs to reach the upper limit value and the lower limit value, the detection system can send out the alarm signal, and the monitoring end can not directly control the electromechanical device by the remote end.

The above detailed description of the preferred embodiments is intended to more clearly illustrate the features and spirit of the present invention, and is not intended to limit the scope of the present invention by the preferred embodiments disclosed above. On the contrary, it is intended to cover various modifications and equivalent arrangements included within the scope of the claims.