How to choose a Handheld Laser Distance Meter

(20240428, By GeoTECH.Work)

Handheld Laser Distance Meter is a measurement tool to measure a distance such as the length, width, and high of a room, and so on.

Are you still using a tape to measure? Now it’s the time for you to buy a Handheld Laser Distance Meter that gives you highly accurate distance value with a simple press of a button, and you won't even need another person to hold the end of the tape.

Here are some tips which will help you to choose a Handheld Laser Distance Meter.

When you buy a Handheld Laser Distance Meter, you need firstly to consider: your needs, price, measurement range, accuracy, function, etc., and choose a cost-effective one that meets your needs.

Generally, the higher the accuracy, the more expensive the price; the farther the measurement range, the more expensive the price; the more the function, the more expensive the price. So, just only choose the one that meets your needs. Generally speaking, the Handheld Laser Distance Meter with the accuracy: 2mm, and the measurement range: 100m, can meet most of your daily measurement needs.

The advantage of choosing a Handheld Laser Distance Meter with the measurement range: 100m is that in case you need to measure a distance close to 100m, you can use it to measure directly, rather than using a segmented method to measure.

The advantage of choosing a Handheld Laser Distance Meter with the accuracy: 2mm is that this measurement accuracy can meet most of the application requirements, such as the requirements of prefabricated decoration of an apartment.

As for functions, Handheld Laser Distance Meter now general have commonly functions, such as: unit settings (meters, feet, inches, etc.), distance measurement with Pythagorean Theorem, area measurement, volume measurement, continuous measurement, etc.; a small number of Handheld Laser Distance Meter may also have: Bluetooth function, camera function, charging function, and so on.

For the choice of power supply mode, both have their own advantages and disadvantages. For ordinary battery power supply, the advantage is that there is no need to charge, replaced by a new battery only when no power (in fact, ordinary battery can be used to do the measurement for a long time). For built-in rechargeable battery power supply, the advantage is that there is no need to buy another battery, you need only to charge the device; but if there is no charge for a long time, it may lead to the performance of the built-in rechargeable battery to decline, or even be scrapped.

Finally, in a sentence to sum up, to choose a Handheld Laser Distance Meter, you need to consider: your needs, price, measurement range, accuracy, function, etc., in order to be able to choose a cost-effective one that meets your needs.

The Usage of the Power Pole (Battery Stick)

(20240430, By GeoTECH.Work)

Power Pole (also known as Battery Stick), its main usage is to serve as an external power supply for GNSS receiver.

In general, GNSS receivers are powered by a replaceable internal battery, which is generally small and has a small battery capacity, so its power supply time is very short. In practical measurement project, it is necessary to bring many spare batteries to replace.

In this case, the Power Pole can play its role. The capacity of the Power Pole is very large, usually: 10Ah, which can supply power to the GNSS receiver for about 10h to 12h. It can ensure that the GNSS receiver works properly for a whole day. And the Power Pole can be fully charged at night to continue the power supply tomorrow.

For different brands of GNSS receivers, the Power Pole is equipped with a power cable with different plugs to connect the Power Pole to the GNSS receiver.

So, with the Power Pole, you can use the GNSS receiver with confidence and never have to worry about running out of power again. The Power Pole is really your helper.

Using the Data Cable to connect a total station to a computer for controlling the total station to do a measurement by sending a command from the computer

(20240518, By GeoTECH.Work)

Suppose you are developing a robot measurement system using a total station, you will definitely need to implement an industrial computer of the robot (or robot dog) to directly control the total station loaded on the robot for automatic measurement, so that the robot can walk to a station point by itself and stops, and uses the supporting automatic leveling platform to achieve rough leveling to meet the leveling requirements of the total station, and then sends commands to control the total station to do a measurement; after the measurement at this station is completed, the robot will automatically walk to the next station point, and then control the total station again for measurement.

In such system, a data cable is used to connect the total station to the robot's industrial computer to ensure stable and reliable data communication. The commands sent by the robot's industrial computer are transmitted to the total station with the data cable. After receiving commands, the total station starts the measurement and transmits the measured data back to the industrial computer with the data cable again, thus realizing the automatic measurement of the robot measurement system.

And this is one of the main uses of data cable. It is usually implemented using the serial port of the computer, and some also use the USB port. This method is more stable and reliable than other methods such as Bluetooth.

Data cable can also be used to import and export data file for a total station. With the corresponding data communication software, the known point data file and the stakeout point data file, which will be used to do a measurement by the total station, can be imported from the computer to the total station; and the measurement data file can be exported from the total station to the computer.

In short, the data cable, matched with the total station, is still one of the useful accessories of the total station.

How to Choose a Tablet PC Suitable for Field Use

(May 22, 2024, By GeoTECH.Work)

In field work environments, certain engineering projects require the use of appropriate tablet PCs to run specific application software. Due to field conditions such as sunlight, dust, and temperature, conventional indoor tablet PCs are often inadequate. So, how do you choose a tablet PC that is suitable for field use?

Here are some tips to help you choose a tablet PC suitable for field use.

1. Display Brightness

Brightness is a crucial specification for field use. If the brightness is insufficient, you won't be able to see the display clearly in sunlight. It is recommended to consider a brightness level of above 2200 nits (sunlight-readable). Additionally, consider the display resolution; a resolution of 1080x1920 or higher is recommended.

2. Dust and Waterproof Performance

It is advisable to purchase an industrial-grade tablet PC with a dust and waterproof rating of IP67 or higher to ensure it meets the environmental requirements for field operations.

3. Battery Life

Ensure that the tablet can last for a full day of field work, which means it should operate for at least 8 hours or more on a single charge.

4. Operating System

Android or Windows? Both have their strengths and weaknesses. Currently, more people tend to purchase tablet PCs with the Android operating system, but the choice depends on your specific needs and preferences.

5. Hardware Specifications

Consider the hardware specifications of the tablet PC, such as CPU, GPU, memory, and interfaces. For example, the tablet PC should have at least 8GB of RAM and 128GB of ROM.

6. Price

Price is always a consideration. Aim to choose a tablet PC that offers the best cost performance while meeting all your requirements.

Summary

When choosing a tablet PC suitable for field use, consider the following factors: the environmental conditions of your fieldwork, the display brightness, dust and waterproof performance, battery life, hardware specifications (CPU, GPU, memory, interfaces, etc.), and price. By evaluating these aspects, you can select the most cost-effective product that meets your needs.