How uniapp application implements smart parking and parking lot management

How uniapp application realizes smart parking and parking lot management

With the increasing number of vehicles, parking has become an important and thorny issue in urban life. In order to solve the parking problem, it has become a trend to use intelligent technology to manage parking lots. The uniapp framework provides a cross-platform development method that can easily develop applications that support smart parking and parking lot management. This article will introduce how to use uniapp to implement smart parking and parking lot management, and provide corresponding code examples.

1. Smart parking
Smart parking refers to the use of technical means to realize functions such as automatic parking space search and automatic navigation in the parking lot, which greatly improves the efficiency and convenience of parking. The key to realizing smart parking in uniapp is to obtain parking space information, determine whether the parking space is available, and implement automatic navigation functions.

1. Obtain parking space information:
   Store parking space information in the parking lot through the background database, including parking space number, availability and other data. The front-end application obtains this information through http requests and displays it in the application. The following is a sample code for obtaining parking space information:

// 在页面加载时，发送http请求获取车位信息 mounted() { uni.request({ url: 'http://localhost:8080/getParkingLot', method: 'GET', success: (res) => { this.parkingLot = res.data }, fail: (err) => { console.log(err) } }) }

2. Determine whether the parking space is available:
   Use the obtained parking space information to determine the availability of each parking space and display it in the front-end application. The following is a sample code to determine whether a parking space is available:

   {{ lot.lotNumber }} 

3. Implement automatic navigation:
   According to the destination selected by the user, the application can provide the user with the destination through positioning and navigation services The best route to the area. The following is a sample code to implement automatic navigation:

// 用户选择目的地后，发送http请求获取导航路线 navigateTo(destination) { uni.request({ url: 'http://localhost:8080/getNavigation', method: 'GET', data: { destination: destination }, success: (res) => { const navigation = res.data // 跳转到导航页面，并将导航信息传递给导航页面 uni.navigateTo({ url: '/pages/navigation/navigation?navigation=' + JSON.stringify(navigation) }) }, fail: (err) => { console.log(err) } }) }

2. Parking Lot Management
Parking lot management refers to the management and statistics of parking spaces, orders and other information in the parking lot to improve the parking lot utilization and management efficiency. The key to realizing parking lot management in uniapp lies in the data addition, deletion, modification, and data statistics functions.

1. Add, delete, modify and check data:
   Use the front-end application to add, delete, modify and check data such as parking spaces and orders, and update the corresponding data in the back-end database at the same time. The following is a sample code for adding, deleting, modifying and checking data:

// 添加车位 addParkingLot(lotNumber) { uni.request({ url: 'http://localhost:8080/addParkingLot', method: 'POST', data: { lotNumber: lotNumber }, success: (res) => { console.log(res.data) }, fail: (err) => { console.log(err) } }) } // 删除车位 deleteParkingLot(lotNumber) { uni.request({ url: 'http://localhost:8080/deleteParkingLot', method: 'DELETE', data: { lotNumber: lotNumber }, success: (res) => { console.log(res.data) }, fail: (err) => { console.log(err) } }) } // 修改车位 updateParkingLot(lotNumber, isAvailable) { uni.request({ url: 'http://localhost:8080/updateParkingLot', method: 'PUT', data: { lotNumber: lotNumber, isAvailable: isAvailable }, success: (res) => { console.log(res.data) }, fail: (err) => { console.log(err) } }) } // 查询车位 searchParkingLot(lotNumber) { uni.request({ url: 'http://localhost:8080/searchParkingLot', method: 'GET', data: { lotNumber: lotNumber }, success: (res) => { console.log(res.data) }, fail: (err) => { console.log(err) } }) }

2. Data statistics function:
   By counting the order information of the parking lot, you can get the usage and income of the parking lot Wait for data. The following is a sample code for the data statistics function:

// 统计停车场的使用情况 getParkingStatistics() { uni.request({ url: 'http://localhost:8080/getParkingStatistics', method: 'GET', success: (res) => { console.log(res.data) }, fail: (err) => { console.log(err) } }) } // 统计停车场的收入 getIncomeStatistics() { uni.request({ url: 'http://localhost:8080/getIncomeStatistics', method: 'GET', success: (res) => { console.log(res.data) }, fail: (err) => { console.log(err) } }) }

Through the above code examples, we can see that it is very convenient to implement intelligent parking and parking lot management in uniapp. By obtaining parking space information, judging parking space availability and realizing automatic navigation, users can quickly find parking spaces; and by adding, deleting, modifying, checking and statistics of parking spaces, orders and other data, parking lot managers can manage parking lots efficiently. The implementation of these functions not only improves the efficiency and convenience of parking, but also improves the management level of the parking lot.

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