How many constant temperature and humidity testing machines are suitable for the automotive industry? Do you know? -Huaqiang Electronic Network

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Some customers will question whether the constant temperature and humidity chamber can also be used in the automobile manufacturing industry.

What are the benefits of applying the automotive industry? Then, Xiaobian will communicate with you the constant temperature and humidity test chamber, which is of great importance in the automobile manufacturing industry.

Constant temperature and humidity chambers are used in automotive manufacturing, which not only saves time, but also allows manufacturers to focus on more important tasks, namely functional verification of modules and subassemblies.

Constant temperature and humidity testing machines are not tolerated for anything that hinders rapid development of test systems or reduced production run time. Therefore, quickly establishing a system relies on connecting the instrument as soon as possible and putting the system into operation. Because you must use embedded

PC

Or stand-alone connection via interface card and cable

PC

Control these systems, so developers face four major issues, and

LXI

Then solve these problems.

User interface: Because there is no front panel, it is sometimes difficult to use based on

PC

Software, diagnosis

PXI

with

VXI

Problems in the device. The first time a developer learns about the functionality of a new device, it is usually required to read the product manual thoroughly. On the table

LXI

In the instrument, the front panel allows the user to easily operate the instrument and understand how it works. Interface: high and low temperature test chamber

LXI

Not adopted

MXI

or

GPIB

Interface, but a long-standing standard interface in the computer field

-

Ethernet. Therefore, the user does not need to be at

PC

Install an additional interface card without installing a dedicated cable or installing dedicated software. With this alone, the system can be put into operation in minutes instead of hours. In the system control requirements, you need to access

ARM

of

I/O

Port, including ordinary

I/O

Port and reuse

IRQO

of

PB29

Pin, however

Linux

Right

I/O

end

12

with

I/0

The virtual address is used in the read and write instructions of the memory, so the physical register address must be mapped to the address before accessing.

I/O

RAM. There are two ways to implement address mapping, one is to use

Ioremap

for

I/O

The virtual area is allocated in the memory area.

Iounmap

Cancel, the other is to use the virtual address already defined by the kernel.

PC

Configuration: due to

PXI

Card slot is

PC

The backplane is expanded so that the entire system must be rebooted each time the card is inserted or removed. In addition, some modular

LXI

Instruments such as Agilent

34980A

Multi-function switch

/

Measuring unit, support

"

Hot swap

”

Or insert and remove the card when the power is turned on. Driver: At

PXI

When the system reboots,

PC

Through the device discovery process, the high and low temperature test chambers identify newly connected devices, which typically require downloading and installing device drivers. and

LXI

You don't need to do this: it uses a LAN connection and does not have to be restarted when connecting or disconnecting the instrument.

PC

. The limitations of the driver can cause problems and take a lot of time, as described later.

LXI

Standard regulations

IVI-COM

Drivers make it easier to work in a variety of development environments. Most modular

LXI

The instrument does not have a front panel, but it has a built-in

Web

The interface allows the user to simply connect

PC

Open the web browser and you can learn the instrument functions. However, when higher functionality or performance is required, it can be directly passed through standard programmed instrument commands.

(SCPI)

Directly to certain

LXI

Instrument programming