TWM644790U - Spiral ice water host monitoring and diagnosis system - Google Patents

Abstract

A monitoring system for a spiral ice water host, applied to a spiral ice water host, including: a collection unit, an analysis unit and an early warning notification unit, wherein when the spiral ice water host does not trip, the analysis unit The monitoring data performs a judgment condition to obtain a diagnostic value. The monitoring data is provided with a safe interval and a buffer interval. When the diagnostic value falls into the buffer interval, an exception message is generated and sent. Through this, the operation data of the spiral ice water host can be monitored and analyzed, and notifications can be sent immediately when abnormal signs or trends occur in the operation of the equipment, and when the equipment does not reach the trip setting.

Description

Spiral ice water host monitoring system

This invention is a monitoring system, especially a spiral ice water host monitoring system.

At present, air conditioning equipment is almost a must-have item for indoor spaces, and is widely used in large indoor places such as enterprises, factories, hospitals, and department stores. The conventional ice water host monitoring system collects and records data on the equipment. For example, patent TW201827762A discloses a method for controlling the ice water host, which is applied to an air conditioning system that contains multiple ice water hosts. The ice water host control method includes an analysis step in which a calculation module calculates a required first freezing ton; a screening step in which a deployment module selects a plurality of configuration units based on the first freezing ton; In the judgment step, the deployment module multiplies the rated freezing tonnage of the ice water host corresponding to each configuration unit by a preset load, so that an operating load of the ice water host corresponds to its target load and determines Whether the sum of the operating loads is above the first freezing ton is adjusted; and in a selection step, the deployment module determines whether the sum of the operating loads of the ice water hosts corresponding to the configuration units is equal to the first The freezing ton compares the configuration unit with the smallest error value, selects the best required configuration unit, and controls the selected ice machine to operate at the corresponding operating load. However, this type of prior technology can only provide an energy-saving and cost-effective ice water host control method, and cannot provide an advance warning that the air-conditioning equipment is not in optimal condition before tripping, and further predict the tripping of the air-conditioning equipment. timing.

In addition, for example, patent TW202132733A discloses a performance evaluation method for a water chiller host, and provides a performance evaluation system. The performance evaluation system includes a plurality of sensors connected to a water chiller host and an information processing device connected to the sensors. The information processing device stores a plurality of operation record data associated with the ice water host, and each operation record data includes a plurality of previous parameters. The sensors are used to sense the current working status of the ice water host to generate a plurality of current parameters, and at the same time, the current performance of the ice water host is obtained based on the current parameters. The information processing device uses the current parameters as index conditions and reads at least one operation record data containing the previous parameters that has a value similar to the current parameters, thereby obtaining the current and past data of the ice water host. Performance differences. However, although this type of prior technology can analyze the operation record data of the chilled water host air conditioning equipment and evaluate its performance, it also faces the problem of failure to provide advance warning before the chilled water host equipment trips, and cannot further predict the trip of the air conditioning equipment. Machine timing.

In order to solve the above and other problems, one purpose of this invention is to provide a spiral ice water host monitoring system.

Another purpose of this invention is to provide a spiral ice water host monitoring system that can use the collected operation information to analyze and learn, and provide advance notification before abnormal signs or trends of equipment operation occur.

Another purpose of this invention is to provide a spiral ice water host monitoring system that can increase the user's maintenance pre-preparation and buffer time before jumping out of the setting.

Another purpose of this invention is to provide a spiral ice water host monitoring system, which can set single conditions and multiple conditions according to the characteristics of the spiral ice water host, make pre-judgments and issue alarms.

In order to achieve the above and other purposes, the monitoring system of the spiral ice water host according to the embodiment of the present invention includes: a collection unit that collects and records the operation information of a spiral ice water host; an analysis unit electrically connected to the collection unit The unit is to select at least one monitoring data in the operation information, and obtain a diagnostic value after performing a judgment condition on the monitoring data when a related equipment related to the monitoring data is not tripped. The data is provided with a safe interval and a buffer interval. When the diagnostic value falls into the buffer interval, an abnormal message is generated; an early warning notification unit is electrically connected to the analysis unit to send an abnormal message to the local or remote end. A notification target.

In one system embodiment, the safety interval represents that the operating performance of the spiral ice water host is between a safety critical value within a normal range, and the buffer interval represents that the operating performance of the spiral ice water host exceeds the safety threshold to A jump between critical values.

In a system embodiment, the safety threshold is a preset value or a predicted value.

In one system embodiment, the predicted value is inferred based on the rate of change of the diagnostic value.

In one system embodiment, it further includes a permission hierarchical management module electrically connected to the analysis unit and the early warning notification unit. The permission hierarchical management module can control the selection or basis of the monitoring data based on permissions. The type of the exception message is set to the corresponding notification target.

In order to make the above and other purposes, functions, and features more obvious and easy to understand, some preferred embodiments are listed below and explained in detail with reference to the attached drawings. Without departing from the spirit of the invention, the present invention has various implementation modes, which are not limited to the details described in the following implementation modes, and the drawings are not necessarily drawn according to the actual scale and are provided only to illustrate the embodiments.

Figure 1 is a system architecture diagram of one embodiment of the spiral ice water host monitoring system of this invention. Please refer to Figure 1. The spiral ice water host monitoring system of this embodiment is used to collect the operation information 11 of a spiral ice water host. The spiral ice water host monitoring system includes: a collection unit 10 and an analysis unit. The unit 20 and an early warning notification unit 30, the collection unit 10 collects and records the operation information 11 of the spiral ice water host. The operation information 11 may include an equipment number to identify the source of different ice water host equipment. The analysis unit 20 is electrically connected to the collection unit 10 to select at least one monitoring data 21 of the operation information 11, and when the spiral ice water host M related to the monitoring data 21 is not tripped, A diagnostic value 23 is obtained after performing a judgment condition 22 on the monitoring data 21. The monitoring data 21 is provided with a safe interval 231 and a buffer interval 232. When the diagnostic value 23 falls into the buffer interval 232, an abnormality is generated. Message 24. The early warning notification unit 30 is electrically connected to the analysis unit 20 to send the abnormal message 24 to one of the local or remote notification targets 31 .

Preferably, the above-mentioned safety interval 231 represents that the operating performance of the spiral ice-water host M is normal and within a safety critical value, and the buffer interval 232 represents that the operating performance of the spiral ice-water host M exceeds the safety critical value and reaches a safety threshold. escape between critical values. In addition, when the diagnostic value 23 reaches the trip threshold value, it is in the interrupted operation to protect the spiral ice water main machine M, that is, the trip state.

Preferably, the aforementioned safety threshold is a preset value or a predicted value.

Preferably, the predicted value is inferred based on the rate of change of the diagnostic value 23 .

Preferably, the operation information 11 is collected by a control center H of the spiral ice water host and uploaded to a cloud database D.

Preferably, the operation information 11 is stored in a database D, and the database D is located on a network C, and the collection unit 10 obtains the operation information 11 through the network C.

Preferably, in this invention, the collection unit 10, the analysis unit 20 and the early warning notification unit 30 can be installed on a global information network website on a cloud server.

Preferably, the invention may further include an authority hierarchical management module 40 electrically connected to the analysis unit 20 and the early warning notification unit 30. The authority hierarchical management module 40 can control the monitoring data according to authority. The selection of 21 or according to the type of the exception message, the corresponding notification target is set.

Through the above system architecture, the collection unit 10 can receive the operation information 11 of the relevant equipment when the spiral ice water host is operating from the control center of the spiral ice water host on the client. For example, the control center can choose to use 4G The Lite network or the client's external network uploads the operation information 11 to the database D in the cloud. You can also choose to set up a server on the client and create a database to collect the operation information 11, and then log in by the collection unit 10 The client's database is sufficient.

In addition, the spiral ice water host monitoring system of this invention can use the single board computer (SBC) platform and use programming languages including but not limited to python, java, etc. to write programs to collect data from the control center of the spiral ice water host.

Figures 2A to 2C are schematic diagrams of web page screens showing the judgment conditions and abnormal messages displayed by the analysis unit of the website when the spiral ice water host monitoring system of this invention is operated. Please refer to Figure 2A, Figure 2B and Figure 2C. The spiral ice-water host monitoring system of this invention can be executed on a cloud server and utilize cloud databases and web-based architectures such as but not limited to PHP+MySQL ( Web) user interface provides data analysis and data interpretation of the operation information 11. In the webpage screen F of Figure 2A, Figure 2B and Figure 2C, the "Exception Name" field of the three consecutive pages of the table is used to display the exception message 24, and the "Condition Content" field of the table is used to display the Judgment condition 22. For comparison between specific judgment condition 22 and exception message 24, please refer to Table 1 below.

Table 1: Exception name Condition content A compressor discharge coil protector action [Machine A spits out coil protection alarm]＞=1 The current of machine A is too high [A machine operating current value]＞=230 A compressor overload protection action [A machine overload protection alarm]＞=1 A oil pressure difference protection switch action [A Oil pressure difference protection alarm]==1 Machine A is in isolation [A machine isolating switch]＞=1 B compressor discharge coil protector action [Machine B spits out coil protection alarm]＞=1 The current of machine B is too high [B machine operating current value]＞=230 B unit compressor overload protection action [Machine B overload protection alarm]＞=1 B oil pressure difference protection switch action [B Oil pressure difference protection alarm]==1 Machine B is in isolation [B machine isolating switch]＞=1 Host low refrigerant temperature alarm [Monitoring operation signal]＞=1 and [Refrigerant low temperature]＜=2 Host power protector alarm [Power protection switch alarm]＞=1 Low voltage protection switch action [A machine low voltage protection alarm]＞=1 and [B machine low voltage protection alarm]＞=1 Ice water outlet temperature is too low [Ice water outlet temperature]＜=5.5 Ice water flow switch does not operate [Ice water flow switch alarm]＞=1 Refrigeration oil level too low [Oil level protection]＞=1 Cooling water inlet temperature is too low [Cooling water inlet temperature]＜=15 Cooling water outlet temperature is too high [Cooling inlet and outlet water temperature]＜=36.5 Cooling water flow switch does not operate [Cooling water flow alarm]＞=1 Refrigerant temperature is too low [Refrigerant low temperature abnormality alarm]＞=1 Control panel emergency switch action [Emergency switch actuation]＞=1 Oil tank temperature is too low [Oil tank temperature]＜=33 System A low voltage is too low [Monitoring operation signal]==1 and [A machine low voltage value]＜=2.2 System B low voltage is too low [Monitoring operation signal]＞=1 and [B machine low voltage value]＞2.2 System high pressure value is too high [High pressure value of machine A]＞=8.3 and [High pressure value of machine B]＞=8.3 Antifreeze switch activated [Antifreeze switch alarm]>=1

Preferably, the judgment condition 22 of this creation can include a single condition and multiple condition operations, and the judgment condition 22 can be modified immediately in the "function" field of the table as shown in Figure 2A, Figure 2B and Figure 2C or delete.

Figure 3 is a step flow chart of an embodiment of the method that can be implemented with the spiral ice water host monitoring system of this invention. Please refer to FIG. 3 . The monitoring method of the spiral ice water host in this embodiment includes: an equipment operation information collection step S10 , an analysis and judgment step S20 , an early warning notification step S30 , and an escape step S40 . The equipment operation information collection step S10 can obtain operation information of a spiral ice water host. In the analysis and judgment step S20, a monitoring data to be analyzed can be retrieved from the operation information. On the premise that the spiral ice water host has not tripped, a judgment condition is applied to the monitoring data to obtain a diagnostic value. The monitoring data is provided with a safety interval and a buffer interval. When the diagnostic value falls into the buffer interval, an abnormal message is generated.

In the early warning notification step S30, the abnormality message can be obtained and sent to a notification target on the local end or the remote end. In the skip step S40, when the diagnostic value is not in the safe interval and exceeds the buffer interval, the spiral ice water host is jumped out.

The safety interval indicates that the operating performance of the spiral ice-water host is between a safety critical value within the normal range, and the buffer interval indicates that the operating performance of the spiral ice-water host exceeds the aforementioned normal range but does not reach an escape critical value.

Preferably, the safety interval represents the normal operating performance of the spiral ice water host, and the buffer interval represents the reduced operating performance of the spiral ice water host. A safety threshold value dividing the safety interval and the buffer interval is based on actual conditions. An empirical preset value or a predicted value estimated based on the change rate of the diagnostic value. Example 1: If the high pressure, the corresponding saturation temperature, and the cooling water outlet temperature in the operation information of the spiral ice water host are used as monitoring data, set the temperature difference between the saturation temperature corresponding to the high pressure and the cooling water outlet temperature. As a judgment condition, the temperature difference change trend infers the equipment condenser scaling alarm point and the equipment high pressure trip value is the trip critical value of the buffer interval. Example 2: If the low pressure, the corresponding saturation temperature, and the ice water outlet temperature in the operation information of the spiral ice water host are used as monitoring data, the temperature difference between the saturation temperature corresponding to the low pressure pressure and the ice water outlet temperature is set to Judgment conditions, its temperature difference change trend, infer that the ice water flow rate of the equipment is too low or the system refrigerant leakage alarm point and the low pressure of the equipment are too low, the trip value is the trip critical value of the buffer interval. Example 3: Use the equipment shutdown status and inlet and outlet water temperature in the operation information of the spiral ice water host as monitoring data, and set the numerical difference between the inlet and outlet water temperature sensors when the equipment is shut down as the judgment condition. Then these temperature sensors The numerical difference can determine the abnormal state of the sensing test model. Example 4: Take the abnormal name column "A machine current is too high" in Table 1 as an example to illustrate the aforementioned default value and predicted value. If the default safety threshold value is "A machine operating current value = 230", the default trip threshold value is "A machine operating current value = 240". For example, if the diagnostic value has a running current value of machine A = 200, and its change rate is 2/second, it can be reasonably predicted that the diagnostic value will exceed the safety threshold after 15 seconds, and that the diagnostic value will exceed the safety threshold after 20 seconds. exceeds the trip threshold. At this time, if you want to increase the response time of the monitoring personnel, the system can change to a predicted value as the safety critical value. For example, if the response time is 5 seconds, that is, an abnormal signal must be given after 10 seconds, then the safety critical value of the predicted value is "A machine operating current value = 220". For more information, please refer to Table 1.

In other words, preferably, the rate of change of the predicted value and the diagnostic value is inferred.

Preferably, this invention may further include a permission hierarchical management step S50 to control the selection of the monitoring data according to permissions or to set the corresponding notification target according to the type of the abnormal message.

Preferably, the communication mechanism for sending the abnormal message to the notification target in the aforementioned early warning notification step S30 includes: an application program (APP) running on a mobile phone or mobile device operating system, an electronic mailbox (Email), a text message (SMS), and the like. Line and other instant messaging (IM) platforms.

Based on the above description, this invention can collect and record system operation data based on the characteristics of the spiral ice water host system, and analyze and learn based on the spiral ice water host operating data. When abnormal signs tend to occur or occur during the operation of the equipment and the equipment is not in use, When the trip setting is reached, an instant notification will be sent. You can also set a single condition or multiple conditions according to the characteristics of the spiral ice water host to make an alarm judgment and send a report.

The above-mentioned embodiments are only for illustrating the technical ideas and features of this invention. Their purpose is to enable those who are familiar with this art to understand the content of this invention and implement it accordingly. This should not limit the patent scope of this invention. , all equivalent changes or modifications made based on the spirit of this creation and the contents of the instructions shall be covered by the patent scope of this creation.

(10):Collection unit (11): Operation information (20):Analysis unit (21):Monitoring information (22): Judgment conditions (23): Diagnostic value (231):Safe area (232): Buffer interval (24):Exception message (30): Early warning notification unit (31): Notification subject (40):Permission hierarchical management module (C):Internet (D):Database (F):Web page screen (M): Spiral ice water host (H):Control center (S10): Step (S20): Steps (S30): Step (S40): Step (S50): Step

Figure 1 is a system architecture diagram of one embodiment of the spiral ice water host monitoring system of this invention. Figures 2A to 2C are schematic diagrams of web page screens showing the judgment conditions and abnormal messages displayed by the analysis unit of the website when the spiral ice water host monitoring system of this invention is operated. Figure 3 is a step flow chart of an implementation method embodiment of the spiral ice water host monitoring system of the present invention.

(10):Collection unit

(11): Operation information

(20):Analysis unit

(21):Monitoring information

(22): Judgment conditions

(23): Diagnostic value

(231):Safe area

(232): Buffer interval

(24):Exception message

(30): Early warning notification unit

(31): Notification subject

(40):Permission hierarchical management module

(C):Internet

(D):Database

(M): Spiral ice water host

(H):Control center

Claims (5)

A spiral ice water host monitoring system, applied to a spiral ice water host (M), including: A collection unit (10) collects and records one of the operating information (11) of the spiral ice water host (M); An analysis unit (20) is electrically connected to the collection unit (10) to select at least one monitoring data (21) in the operation information (11); and An early warning notification unit (30) is electrically connected to the analysis unit (20) to send an abnormal message (24) to a notification target (31) on the local end or the remote end, Among them, when the spiral ice water host (M) is not tripped, the analysis unit (20) performs a judgment condition (22) on the monitoring data (21) to obtain a diagnostic value (23). The data (21) is provided with a safety interval (231) and a buffer interval (232). When the diagnostic value (23) falls into the buffer interval (232), the exception message (24) is generated. The monitoring system for the spiral chiller machine as described in claim 1, wherein the safety interval (231) represents that the operating performance of the spiral chiller machine (M) is between a safety critical value in the normal range, and the buffer The interval (232) represents that the operating performance of the spiral ice-water main unit (M) exceeds the safety critical value and reaches a trip critical value. The spiral ice water host monitoring system as described in claim 2, wherein the safety critical value is a preset value or a predicted value. The spiral ice water host monitoring system as described in claim 3, wherein the predicted value is inferred based on the change rate of the diagnostic value (23). The spiral ice water host monitoring system as described in claim 1 further includes a permission hierarchical management module (40) electrically connected to the analysis unit (20) and the early warning notification unit (30). The layer management module (40) can control the selection of the monitoring data (21) according to the authority or set the corresponding reporting target according to the type of the abnormal message.

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